Tag Archives: ball bearing

China IKO Ball Spline LSAGFL5MAG6LSAGFL30LSAGF20LSAG10T1HS2 type nut block bearing drive shaft parts

Problem: New
Guarantee: 6 Months
Relevant Industries: Building Content Shops, Production Plant, Machinery Restore Outlets, Foodstuff & Beverage Manufacturing unit, Farms, Higher precision machining universal custom stainless metal drive shaft for truck Retail, Building functions
Fat (KG):
Showroom Area: None
Video outgoing-inspection: Offered
Machinery Examination Report: Offered
Advertising and marketing Variety: Common Product
Warranty of main parts: 1 Calendar year
Main Parts: Bearing
Producing Method: Milled Thread
Substance: Large metal
Size: 100-6000mm(Custmized )
Software: Cnc Machining Elements
Service: OEM Providers
Sample: Avaliable
Shipping and delivery: Inside 5-25 Times
Thread course: Appropriate
Payment: T/T
Hardness: 59-63 HRC
Coloration: Personalized Colours
Size: Customer’s Samples
Packaging Specifics: Single ball screw package deal into first box
Port: HangZhou PORT

THK CZPT CZPT HIWIN MISUMI NB TBI CZPT Linear CZPT rail/Ball screw/Ball Spline/Cross roller information/Cross roller/Bearing bushing/Silde block/Linear module

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How to Calculate Stiffness, Centering Force, Wear and Fatigue Failure of Spline Couplings

There are various types of spline couplings. These couplings have several important properties. These properties are: Stiffness, Involute splines, Misalignment, Wear and fatigue failure. To understand how these characteristics relate to spline couplings, read this article. It will give you the necessary knowledge to determine which type of coupling best suits your needs. Keeping in mind that spline couplings are usually spherical in shape, they are made of steel.
splineshaft

Involute splines

An effective side interference condition minimizes gear misalignment. When two splines are coupled with no spline misalignment, the maximum tensile root stress shifts to the left by five mm. A linear lead variation, which results from multiple connections along the length of the spline contact, increases the effective clearance or interference by a given percentage. This type of misalignment is undesirable for coupling high-speed equipment.
Involute splines are often used in gearboxes. These splines transmit high torque, and are better able to distribute load among multiple teeth throughout the coupling circumference. The involute profile and lead errors are related to the spacing between spline teeth and keyways. For coupling applications, industry practices use splines with 25 to fifty-percent of spline teeth engaged. This load distribution is more uniform than that of conventional single-key couplings.
To determine the optimal tooth engagement for an involved spline coupling, Xiangzhen Xue and colleagues used a computer model to simulate the stress applied to the splines. The results from this study showed that a “permissible” Ruiz parameter should be used in coupling. By predicting the amount of wear and tear on a crowned spline, the researchers could accurately predict how much damage the components will sustain during the coupling process.
There are several ways to determine the optimal pressure angle for an involute spline. Involute splines are commonly measured using a pressure angle of 30 degrees. Similar to gears, involute splines are typically tested through a measurement over pins. This involves inserting specific-sized wires between gear teeth and measuring the distance between them. This method can tell whether the gear has a proper tooth profile.
The spline system shown in Figure 1 illustrates a vibration model. This simulation allows the user to understand how involute splines are used in coupling. The vibration model shows four concentrated mass blocks that represent the prime mover, the internal spline, and the load. It is important to note that the meshing deformation function represents the forces acting on these three components.
splineshaft

Stiffness of coupling

The calculation of stiffness of a spline coupling involves the measurement of its tooth engagement. In the following, we analyze the stiffness of a spline coupling with various types of teeth using two different methods. Direct inversion and blockwise inversion both reduce CPU time for stiffness calculation. However, they require evaluation submatrices. Here, we discuss the differences between these two methods.
The analytical model for spline couplings is derived in the second section. In the third section, the calculation process is explained in detail. We then validate this model against the FE method. Finally, we discuss the influence of stiffness nonlinearity on the rotor dynamics. Finally, we discuss the advantages and disadvantages of each method. We present a simple yet effective method for estimating the lateral stiffness of spline couplings.
The numerical calculation of the spline coupling is based on the semi-analytical spline load distribution model. This method involves refined contact grids and updating the compliance matrix at each iteration. Hence, it consumes significant computational time. Further, it is difficult to apply this method to the dynamic analysis of a rotor. This method has its own limitations and should be used only when the spline coupling is fully investigated.
The meshing force is the force generated by a misaligned spline coupling. It is related to the spline thickness and the transmitting torque of the rotor. The meshing force is also related to the dynamic vibration displacement. The result obtained from the meshing force analysis is given in Figures 7, 8, and 9.
The analysis presented in this paper aims to investigate the stiffness of spline couplings with a misaligned spline. Although the results of previous studies were accurate, some issues remained. For example, the misalignment of the spline may cause contact damages. The aim of this article is to investigate the problems associated with misaligned spline couplings and propose an analytical approach for estimating the contact pressure in a spline connection. We also compare our results to those obtained by pure numerical approaches.

Misalignment

To determine the centering force, the effective pressure angle must be known. Using the effective pressure angle, the centering force is calculated based on the maximum axial and radial loads and updated Dudley misalignment factors. The centering force is the maximum axial force that can be transmitted by friction. Several published misalignment factors are also included in the calculation. A new method is presented in this paper that considers the cam effect in the normal force.
In this new method, the stiffness along the spline joint can be integrated to obtain a global stiffness that is applicable to torsional vibration analysis. The stiffness of bearings can also be calculated at given levels of misalignment, allowing for accurate estimation of bearing dimensions. It is advisable to check the stiffness of bearings at all times to ensure that they are properly sized and aligned.
A misalignment in a spline coupling can result in wear or even failure. This is caused by an incorrectly aligned pitch profile. This problem is often overlooked, as the teeth are in contact throughout the involute profile. This causes the load to not be evenly distributed along the contact line. Consequently, it is important to consider the effect of misalignment on the contact force on the teeth of the spline coupling.
The centre of the male spline in Figure 2 is superposed on the female spline. The alignment meshing distances are also identical. Hence, the meshing force curves will change according to the dynamic vibration displacement. It is necessary to know the parameters of a spline coupling before implementing it. In this paper, the model for misalignment is presented for spline couplings and the related parameters.
Using a self-made spline coupling test rig, the effects of misalignment on a spline coupling are studied. In contrast to the typical spline coupling, misalignment in a spline coupling causes fretting wear at a specific position on the tooth surface. This is a leading cause of failure in these types of couplings.
splineshaft

Wear and fatigue failure

The failure of a spline coupling due to wear and fatigue is determined by the first occurrence of tooth wear and shaft misalignment. Standard design methods do not account for wear damage and assess the fatigue life with big approximations. Experimental investigations have been conducted to assess wear and fatigue damage in spline couplings. The tests were conducted on a dedicated test rig and special device connected to a standard fatigue machine. The working parameters such as torque, misalignment angle, and axial distance have been varied in order to measure fatigue damage. Over dimensioning has also been assessed.
During fatigue and wear, mechanical sliding takes place between the external and internal splines and results in catastrophic failure. The lack of literature on the wear and fatigue of spline couplings in aero-engines may be due to the lack of data on the coupling’s application. Wear and fatigue failure in splines depends on a number of factors, including the material pair, geometry, and lubrication conditions.
The analysis of spline couplings shows that over-dimensioning is common and leads to different damages in the system. Some of the major damages are wear, fretting, corrosion, and teeth fatigue. Noise problems have also been observed in industrial settings. However, it is difficult to evaluate the contact behavior of spline couplings, and numerical simulations are often hampered by the use of specific codes and the boundary element method.
The failure of a spline gear coupling was caused by fatigue, and the fracture initiated at the bottom corner radius of the keyway. The keyway and splines had been overloaded beyond their yield strength, and significant yielding was observed in the spline gear teeth. A fracture ring of non-standard alloy steel exhibited a sharp corner radius, which was a significant stress raiser.
Several components were studied to determine their life span. These components include the spline shaft, the sealing bolt, and the graphite ring. Each of these components has its own set of design parameters. However, there are similarities in the distributions of these components. Wear and fatigue failure of spline couplings can be attributed to a combination of the three factors. A failure mode is often defined as a non-linear distribution of stresses and strains.

China IKO Ball Spline LSAGFL5MAG6LSAGFL30LSAGF20LSAG10T1HS2 type nut block bearing drive shaft parts China IKO Ball Spline LSAGFL5MAG6LSAGFL30LSAGF20LSAG10T1HS2 type nut block bearing drive shaft parts
editor by czh 2023-02-19

China Accuracy Grade Alloy Steel Spline Bearing 2-5 Oil Hole Ball Spline Shafts a line drive shaft

Item Description

Item description
The spline is a kind of linear motion program. When spline motions together the precision floor Shaft by balls, the torque is transferred. The spline has compact construction. It can transfer the Above load and motive energy. It has longer lifetime. At existing the manufacturing facility manufacture 2 types of spline, namely convex spline and concave spline. Usually the convex spline can consider larger radial load and torque than concave spline.
 

Item title Ball spline
Model GJZ,GJZA,GJF,GJH,GJZG,GJFG,
Dia 15mm-150mm
Material Bearing Metal
Precision Course Standard/ High/ Exact
Package Plastic bag, box, carton
MOQ 1pc

Requirements
Ball sort:φ16-φ250
Large speed , large accuracy
Heavy load , lengthy life
Adaptable motion,reduced strength usage
Higher motion pace
Large load and long services life
Applicationgs:semiconductor gear,tire equipment,monocrystalline silicon furnace,medical rehabilitation gear

Firm profile

HangZhou YIGONG has a total functionality laboratory of rolling practical factors, high-pace ball screw pair 60m/min operating sounds 70dB, high-velocity rolling linear CZPT pair 60m/min operating sounds 68dB, for precision horizontal machining center batch matching ball screw pair, rolling CZPT pair, to obtain every single axis fast transferring speed 40m/min, positioning accuracy .002mm, recurring positioning accuracy .001mm. Our equipments import from Japan and Germany and so on.

FAQ

Why pick AZI China?
With a lot more than 60 years of manufacturing experience, quality assurance,factory straight value.

How can I get a sample to check the quality?
We quote in accordance to your drawing, the cost is suitable, signal the sample listing.
 
What is your main merchandise ? 
Our Major items are consist of ball screw,linear manual,arc linear guidebook,ball spline and ball screw linear CZPT rail module.

 

Material: Gcr15
Load: Customized
Stiffness & Flexibility: Stiffness / Rigid Axle
Journal Diameter Dimensional Accuracy: Customized
Axis Shape: Straight Shaft
Shaft Shape: Real Axis

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Samples:
US$ 10/Set
1 Set(Min.Order)

|
Request Sample

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Customization:
Available

|

Customized Request

###

Product name Ball spline
Model GJZ,GJZA,GJF,GJH,GJZG,GJFG,
Dia 15mm-150mm
Material Bearing Steel
Precision Class Normal/ High/ Precise
Package Plastic bag, box, carton
MOQ 1pc
Material: Gcr15
Load: Customized
Stiffness & Flexibility: Stiffness / Rigid Axle
Journal Diameter Dimensional Accuracy: Customized
Axis Shape: Straight Shaft
Shaft Shape: Real Axis

###

Samples:
US$ 10/Set
1 Set(Min.Order)

|
Request Sample

###

Customization:
Available

|

Customized Request

###

Product name Ball spline
Model GJZ,GJZA,GJF,GJH,GJZG,GJFG,
Dia 15mm-150mm
Material Bearing Steel
Precision Class Normal/ High/ Precise
Package Plastic bag, box, carton
MOQ 1pc

The Different Types of Splines in a Splined Shaft

A splined shaft is a machine component with internal and external splines. The splines are formed in four different ways: Involute, Parallel, Serrated, and Ball. You can learn more about each type of spline in this article. When choosing a splined shaft, be sure to choose the right one for your application. Read on to learn about the different types of splines and how they affect the shaft’s performance.
splineshaft

Involute splines

Involute splines in a splined shaft are used to secure and extend mechanical assemblies. They are smooth, inwardly curving grooves that resist separation during operation. A shaft with involute splines is often longer than the shaft itself. This feature allows for more axial movement. This is beneficial for many applications, especially in a gearbox.
The involute spline is a shaped spline, similar to a parallel spline. It is angled and consists of teeth that create a spiral pattern that enables linear and rotatory motion. It is distinguished from other splines by the serrations on its flanks. It also has a flat top. It is a good option for couplers and other applications where angular movement is necessary.
Involute splines are also called involute teeth because of their shape. They are flat on the top and curved on the sides. These teeth can be either internal or external. As a result, involute splines provide greater surface contact, which helps reduce stress and fatigue. Regardless of the shape, involute splines are generally easy to machine and fit.
Involute splines are a type of splines that are used in splined shafts. These splines have different names, depending on their diameters. An example set of designations is for a 32-tooth male spline, a 2,500-tooth module, and a 30 degree pressure angle. An example of a female spline, a fillet root spline, is used to describe the diameter of the splined shaft.
The effective tooth thickness of splines is dependent on the number of keyways and the type of spline. Involute splines in splined shafts should be designed to engage 25 to 50 percent of the spline teeth during the coupling. Involute splines should be able to withstand the load without cracking.

Parallel splines

Parallel splines are formed on a splined shaft by putting one or more teeth into another. The male spline is positioned at the center of the female spline. The teeth of the male spline are also parallel to the shaft axis, but a common misalignment causes the splines to roll and tilt. This is common in many industrial applications, and there are a number of ways to improve the performance of splines.
Typically, parallel splines are used to reduce friction in a rotating part. The splines on a splined shaft are narrower on the end face than the interior, which makes them more prone to wear. This type of spline is used in a variety of industries, such as machinery, and it also allows for greater efficiency when transmitting torque.
Involute splines on a splined shaft are the most common. They have equally spaced teeth, and are therefore less likely to crack due to fatigue. They also tend to be easy to cut and fit. However, they are not the best type of spline. It is important to understand the difference between parallel and involute splines before deciding on which spline to use.
The difference between splined and involute splines is the size of the grooves. Involute splines are generally larger than parallel splines. These types of splines provide more torque to the gear teeth and reduce stress during operation. They are also more durable and have a longer life span. And because they are used on farm machinery, they are essential in this type of application.
splineshaft

Serrated splines

A Serrated Splined Shaft has several advantages. This type of shaft is highly adjustable. Its large number of teeth allows large torques, and its shorter tooth width allows for greater adjustment. These features make this type of shaft an ideal choice for applications where accuracy is critical. Listed below are some of the benefits of this type of shaft. These benefits are just a few of the advantages. Learn more about this type of shaft.
The process of hobbing is inexpensive and highly accurate. It is useful for external spline shafts, but is not suitable for internal splines. This type of process forms synchronized shapes on the shaft, reducing the manufacturing cycle and stabilizing the relative phase between spline and thread. It uses a grinding wheel to shape the shaft. CZPT Manufacturing has a large inventory of Serrated Splined Shafts.
The teeth of a Serrated Splined Shaft are designed to engage with the hub over the entire circumference of the shaft. The teeth of the shaft are spaced uniformly around the spline, creating a multiple-tooth point of contact over the entire length of the shaft. The results of these analyses are usually satisfactory. But there are some limitations. To begin with, the splines of the Serrated Splined Shaft should be chosen carefully. If the application requires large-scale analysis, it may be necessary to modify the design.
The splines of the Serrated Splined Shaft are also used for other purposes. They can be used to transmit torque to another device. They also act as an anti-rotational device and function as a linear guide. Both the design and the type of splines determine the function of the Splined Shaft. In the automobile industry, they are used in vehicles, aerospace, earth-moving machinery, and many other industries.

Ball splines

The invention relates to a ball-spinned shaft. The shaft comprises a plurality of balls that are arranged in a series and are operatively coupled to a load path section. The balls are capable of rolling endlessly along the path. This invention also relates to a ball bearing. Here, a ball bearing is one of the many types of gears. The following discussion describes the features of a ball bearing.
A ball-splined shaft assembly comprises a shaft with at least one ball-spline groove and a plurality of circumferential step grooves. The shaft is held in a first holding means that extends longitudinally and is rotatably held by a second holding means. Both the shaft and the first holding means are driven relative to one another by a first driving means. It is possible to manufacture a ball-splined shaft in a variety of ways.
A ball-splined shaft features a nut with recirculating balls. The ball-splined nut rides in these grooves to provide linear motion while preventing rotation. A splined shaft with a nut that has recirculating balls can also provide rotary motion. A ball splined shaft also has higher load capacities than a ball bushing. For these reasons, ball splines are an excellent choice for many applications.
In this invention, a pair of ball-spinned shafts are housed in a box under a carrier device 40. Each of the two shafts extends along a longitudinal line of arm 50. One end of each shaft is supported rotatably by a slide block 56. The slide block also has a support arm 58 that supports the center arm 50 in a cantilever fashion.
splineshaft

Sector no-go gage

A no-go gauge is a tool that checks the splined shaft for oversize. It is an effective way to determine the oversize condition of a splined shaft without removing the shaft. It measures external splines and serrations. The no-go gage is available in sizes ranging from 19mm to 130mm with a 25mm profile length.
The sector no-go gage has two groups of diametrally opposed teeth. The space between them is manufactured to a maximum space width and the tooth thickness must be within a predetermined tolerance. This gage would be out of tolerance if the splines were measured with a pin. The dimensions of this splined shaft can be found in the respective ANSI or DIN standards.
The go-no-go gage is useful for final inspection of thread pitch diameter. It is also useful for splined shafts and threaded nuts. The thread of a screw must match the contour of the go-no-go gage head to avoid a no-go condition. There is no substitute for a quality machine. It is an essential tool for any splined shaft and fastener manufacturer.
The NO-GO gage can detect changes in tooth thickness. It can be calibrated under ISO17025 standards and has many advantages over a non-go gage. It also gives a visual reference of the thickness of a splined shaft. When the teeth match, the shaft is considered ready for installation. It is a critical process. In some cases, it is impossible to determine the precise length of the shaft spline.
The 45-degree pressure angle is most commonly used for axles and torque-delivering members. This pressure angle is the most economical in terms of tool life, but the splines will not roll neatly like a 30 degree angle. The 45-degree spline is more likely to fall off larger than the other two. Oftentimes, it will also have a crowned look. The 37.5 degree pressure angle is a compromise between the other two pressure angles. It is often used when the splined shaft material is harder than usual.

China Accuracy Grade Alloy Steel Spline Bearing 2-5 Oil Hole Ball Spline Shafts a line drive shaft China Accuracy Grade Alloy Steel Spline Bearing 2-5 Oil Hole Ball Spline Shafts a line drive shaft
editor by czh 2023-01-09

China Standard Machine Tools Spindle 3310 ZZ/2RS Premium Quality Angular Contact Ball Bearing with Great quality

Product Description

Detailed Parameters

 

Double Row Angular Contact Ball Bearing
Bearing No. dxDxB (mm) Weight(kg)
3310 3310 ZZ 3310 2RS 50 110 44.4 1.810 

Ball Bearings and Applications

Ball Bearings:
1. Deep Groove Ball Bearing
2. Self-Aligning Ball Bearing
3. Angular Contact Ball Bearing
4. Thrust Ball Bearing

Applications:
1. Electric motors
2. Elevators
3. Conveyor systems
4. Agriculture industry
5. Steering applications
6. Industrial pumps and drive cars
7. Pulp and paper industry
8. Industrial gearboxes
9. Trucks, trailers and buses

Specifications of Angular Contact Ball Bearing

Double Row Angular Contact Ball Bearing
Bearing No. dxDxB (mm) Weight(kg) Bearing No. dxDxB (mm) Weight(kg)
3200 3200 ZZ 3200 2RS 10 30 14.3 0.049               
3201 3201 ZZ 3201 2RS 12 32 15.9 0.057               
3202 3202 ZZ 3202 2RS 15 35 15.9 0.064  3302 3302 ZZ 3302 2RS 15 42 19 0.132 
3203 3203 ZZ 3203 2RS 17 40 17.5 0.095  3303 3303 ZZ 3303 2RS 17 47 22.2 0.180 
3204 3204 ZZ 3204 2RS 20 47 17.5 0.150  3304 3304 ZZ 3304 2RS 20 52 22.2 0.217 
3205 3205 ZZ 3205 2RS 25 52 20.6 0.175  3305 3305 ZZ 3305 2RS 5 62 25.4 0.362 
3206 3206 ZZ 3206 2RS 30 62 23.8 0.286  3306 3306 ZZ 3306 2RS 30 72 30.2 0.553 
3207 3207 ZZ 3207 2RS 35 72 27 0.436  3307 3307 ZZ 3307 2RS 35 80 34.9 0.766 
3208 3208 ZZ 3208 2RS 40 80 30.2 0.590  3308 3308 ZZ 3308 2RS 40 90 36.5 1.571 
3209 3209 ZZ 3209 2RS 45 85 30.2 0.640  3309 3309 ZZ 3309 2RS 45 100 39.7 1.340 
3210 3210 ZZ 3210 2RS 50 90 30.2 0.690  3310 3310 ZZ 3310 2RS 50 110 44.4 1.810 
3211 3211 ZZ 3211 2RS 55 100 33.3 0.986  3311 3311 ZZ 3311 2RS 55 120 49.2 2.320 
3212 3212 ZZ 3212 2RS 60 110 36.5 1.270  3312 3312 ZZ 3312 2RS 60 130 54 3.050 
3213 3213 ZZ 3213 2RS 65 120 38.1 1.560  3313 3313 ZZ 3313 2RS 65 140 58.7 3.960 
3214 3214 ZZ 3214 2RS 70 125 39.7 1.800  3314 3314 ZZ 3314 2RS 70 150 63.5 4.740 
3215     75 130 41.3 2.100  3315     76 160 48.3 6.150 
3216     80 140 44.4 2.650  3316     80 170 68.3 6.950 
3217     85 150 49.2 3.400  3317     85 180 73 8.300 
3218     90 160 52.4 4.150  3318     90 190 73 9.250 
3219     95 170 55.6 5.000  3319     95 200 77.8 11.000 
3220     100 180 60.3 6.100  3320     100 215 82.6 13.500 
3222     110 200 69.8 8.800  3322     110 240 92.1 19.000 

The Factory
The advantage ball bearing factory located in the bearing manufacturing center – HangZhou, China. There are 2 plants, 1 specialized in manufacturing common grade ball bearing, another 1 professional in EMQ bearing with stabilized Z3V3 quality, the factory takes her every effort in purchasing the most advanced bearing processes equipment, and NC automatic facilities are widely used in the factory and has become a bearing factory owning the most advanced processes equipment in China. The Granville own ball bearing factory division manufacturing a whole range of radial deep groove ball bearings, open – shield – sealed – chrome steel, and stainless steel available. 

 

Product Offering
Bore size 3mm and up
Closures Open
Non-contact metallic shields
Non-contact seals
Contact seals
Ring Material 52100 chrome steel
440C stainless steel
420C stainless steel
Seal Materiial Nitrile, Polyacrylic 
Retainer Riveted steel
Crimped steel
Crowned steel
Crowned nylon
Precision Class ABEC-1, ABEC-3, ABEC-5, ABEC-7
Radial Clearance C2, C0, C3, C4, C5
Heat Stabilization S0, S1, S2, S3

Manufacturing Process
Granville, as a manufacturer of high-quality products, guarantees compliance with the highest standards relative to the use of the best steel quality in the production process, the highest standards in the design of contact surfaces, as well as the most efficient packing and lubrication of parts.

From material coming, quality control through all processes except internal test, goods to third party inspection if required. After the center of inspection and experiment is founded, effective methods of inspecting all kinds of row materials are mastered and then the reliability of bearings is ensured. 

One of our main objectives is the continued improvement in the quality of our products and processes, in pursuit of which we obtained ISO certification 9001:2008 and TS16949.

 

Quality Control

Advantage Manufacturing Processes and Quality Control
01 Heat Treatment
02 Centerless Gringing Machine 11200(most advanced)
03 Automatic Production Lines for Raceway
04 Automatic Production Lines for Raceway
05 Ultrasonic Cleaning of Rings
06 Automatic Assembly
07 Ultrasonic Cleaning of Bearings
08 Automatic Greasing,Seals Pressing
09 Measurement of Bearing Vibration(Acceleration)
10 Measurement of Bearing Vibration(speed)
11 Laser Marking
12 Automatic Packing

Packing & Shipping

Packing 1.Industrial exporting package
2.Individual plastic / carton / pallet
3.As the customer’s requirements
Delivery date 30-60 days for normal order

Company Profile

Granville group start in London and in order to adapt to the international market situation and enterprise development, Granville gradually oriented to global markets through resource integration, the Granville’s businesses are present across 5 continents. We operate in 4 industry clusters: Components for Industry and automotive; Machine tools and mechatronics; Energy and New Materials, and Healthcare.
 
Comprehensive product range:

— Bearings
— Oil seals, Transmission belt
— Chain and Sprocket
— Hub assembly & Wheel bearings
— Coupling, castings
— Linear motion

Values
— Behavior-based, service-oriented, focused on results and committed to continuous improvement

Focus
— supply chain management and customer service

Advantages
1. Advanced Automatic Lines
2. Comprehensive Range
3. Premium Quality
4. Sustainability

Screw Shaft Features Explained

When choosing the screw shaft for your application, you should consider the features of the screws: threads, lead, pitch, helix angle, and more. You may be wondering what these features mean and how they affect the screw’s performance. This article explains the differences between these factors. The following are the features that affect the performance of screws and their properties. You can use these to make an informed decision and purchase the right screw. You can learn more about these features by reading the following articles.

Threads

The major diameter of a screw thread is the larger of the 2 extreme diameters. The major diameter of a screw is also known as the outside diameter. This dimension can’t be directly measured, but can be determined by measuring the distance between adjacent sides of the thread. In addition, the mean area of a screw thread is known as the pitch. The diameter of the thread and pitch line are directly proportional to the overall size of the screw.
The threads are classified by the diameter and pitch. The major diameter of a screw shaft has the largest number of threads; the smaller diameter is called the minor diameter. The thread angle, also known as the helix angle, is measured perpendicular to the axis of the screw. The major diameter is the largest part of the screw; the minor diameter is the lower end of the screw. The thread angle is the half distance between the major and minor diameters. The minor diameter is the outer surface of the screw, while the top surface corresponds to the major diameter.
The pitch is measured at the crest of a thread. In other words, a 16-pitch thread has a diameter of 1 sixteenth of the screw shaft’s diameter. The actual diameter is 0.03125 inches. Moreover, a large number of manufacturers use this measurement to determine the thread pitch. The pitch diameter is a critical factor in successful mating of male and female threads. So, when determining the pitch diameter, you need to check the thread pitch plate of a screw.
screwshaft

Lead

In screw shaft applications, a solid, corrosion-resistant material is an important requirement. Lead screws are a robust choice, which ensure shaft direction accuracy. This material is widely used in lathes and measuring instruments. They have black oxide coatings and are suited for environments where rusting is not acceptable. These screws are also relatively inexpensive. Here are some advantages of lead screws. They are highly durable, cost-effective, and offer high reliability.
A lead screw system may have multiple starts, or threads that run parallel to each other. The lead is the distance the nut travels along the shaft during a single revolution. The smaller the lead, the tighter the thread. The lead can also be expressed as the pitch, which is the distance between adjacent thread crests or troughs. A lead screw has a smaller pitch than a nut, and the smaller the lead, the greater its linear speed.
When choosing lead screws, the critical speed is the maximum number of revolutions per minute. This is determined by the minor diameter of the shaft and its length. The critical speed should never be exceeded or the lead will become distorted or cracked. The recommended operational speed is around 80 percent of the evaluated critical speed. Moreover, the lead screw must be properly aligned to avoid excessive vibrations. In addition, the screw pitch must be within the design tolerance of the shaft.

Pitch

The pitch of a screw shaft can be viewed as the distance between the crest of a thread and the surface where the threads meet. In mathematics, the pitch is equivalent to the length of 1 wavelength. The pitch of a screw shaft also relates to the diameter of the threads. In the following, the pitch of a screw is explained. It is important to note that the pitch of a screw is not a metric measurement. In the following, we will define the 2 terms and discuss how they relate to 1 another.
A screw’s pitch is not the same in all countries. The United Kingdom, Canada, and the United States have standardized screw threads according to the UN system. Therefore, there is a need to specify the pitch of a screw shaft when a screw is being manufactured. The standardization of pitch and diameter has also reduced the cost of screw manufacturing. Nevertheless, screw threads are still expensive. The United Kingdom, Canada, and the United States have introduced a system for the calculation of screw pitch.
The pitch of a lead screw is the same as that of a lead screw. The diameter is 0.25 inches and the circumference is 0.79 inches. When calculating the mechanical advantage of a screw, divide the diameter by its pitch. The larger the pitch, the more threads the screw has, increasing its critical speed and stiffness. The pitch of a screw shaft is also proportional to the number of starts in the shaft.

Helix angle

The helix angle of a screw shaft is the angle formed between the circumference of the cylinder and its helix. Both of these angles must be equal to 90 degrees. The larger the lead angle, the smaller the helix angle. Some reference materials refer to angle B as the helix angle. However, the actual angle is derived from calculating the screw geometry. Read on for more information. Listed below are some of the differences between helix angles and lead angles.
High helix screws have a long lead. This length reduces the number of effective turns of the screw. Because of this, fine pitch screws are usually used for small movements. A typical example is a 16-mm x 5-inch screw. Another example of a fine pitch screw is a 12x2mm screw. It is used for small moves. This type of screw has a lower lead angle than a high-helix screw.
A screw’s helix angle refers to the relative angle of the flight of the helix to the plane of the screw axis. While screw helix angles are not often altered from the standard square pitch, they can have an effect on processing. Changing the helix angle is more common in two-stage screws, special mixing screws, and metering screws. When a screw is designed for this function, it should be able to handle the materials it is made of.
screwshaft

Size

The diameter of a screw is its diameter, measured from the head to the shaft. Screw diameters are standardized by the American Society of Mechanical Engineers. The diameters of screws range from 3/50 inches to 16 inches, and more recently, fractions of an inch have been added. However, shaft diameters may vary depending on the job, so it is important to know the right size for the job. The size chart below shows the common sizes for screws.
Screws are generally referred to by their gauge, which is the major diameter. Screws with a major diameter less than a quarter of an inch are usually labeled as #0 to #14 and larger screws are labeled as sizes in fractions of an inch. There are also decimal equivalents of each screw size. These measurements will help you choose the correct size for your project. The screws with the smaller diameters were not tested.
In the previous section, we described the different shaft sizes and their specifications. These screw sizes are usually indicated by fractions of an inch, followed by a number of threads per inch. For example, a ten-inch screw has a shaft size of 2” with a thread pitch of 1/4″, and it has a diameter of 2 inches. This screw is welded to a two-inch Sch. 40 pipe. Alternatively, it can be welded to a 9-inch O.A.L. pipe.
screwshaft

Shape

Screws come in a wide variety of sizes and shapes, from the size of a quarter to the diameter of a U.S. quarter. Screws’ main function is to hold objects together and to translate torque into linear force. The shape of a screw shaft, if it is round, is the primary characteristic used to define its use. The following chart shows how the screw shaft differs from a quarter:
The shape of a screw shaft is determined by 2 features: its major diameter, or distance from the outer edge of the thread on 1 side to the inner smooth surface of the shaft. These are generally 2 to 16 millimeters in diameter. Screw shafts can have either a fully threaded shank or a half-threaded shank, with the latter providing better stability. Regardless of whether the screw shaft is round or domed, it is important to understand the different characteristics of a screw before attempting to install it into a project.
The screw shaft’s diameter is also important to its application. The ball circle diameter refers to the distance between the center of 2 opposite balls in contact with the grooves. The root diameter, on the other hand, refers to the distance between the bottommost grooves of the screw shaft. These are the 2 main measurements that define the screw’s overall size. Pitch and nominal diameter are important measurements for a screw’s performance in a particular application.

Lubrication

In most cases, lubrication of a screw shaft is accomplished with grease. Grease is made up of mineral or synthetic oil, thickening agent, and additives. The thickening agent can be a variety of different substances, including lithium, bentonite, aluminum, and barium complexes. A common classification for lubricating grease is NLGI Grade. While this may not be necessary when specifying the type of grease to use for a particular application, it is a useful qualitative measure.
When selecting a lubricant for a screw shaft, the operating temperature and the speed of the shaft determine the type of oil to use. Too much oil can result in heat buildup, while too little can lead to excessive wear and friction. The proper lubrication of a screw shaft directly affects the temperature rise of a ball screw, and the life of the assembly. To ensure the proper lubrication, follow the guidelines below.
Ideally, a low lubrication level is appropriate for medium-sized feed stuff factories. High lubrication level is appropriate for larger feed stuff factories. However, in low-speed applications, the lubrication level should be sufficiently high to ensure that the screws run freely. This is the only way to reduce friction and ensure the longest life possible. Lubrication of screw shafts is an important consideration for any screw.

China Standard Machine Tools Spindle 3310 ZZ/2RS Premium Quality Angular Contact Ball Bearing with Great qualityChina Standard Machine Tools Spindle 3310 ZZ/2RS Premium Quality Angular Contact Ball Bearing with Great quality

China supplier CZPT Bicycle Bearing 5202-ZZ Double-Row Angular Contact Ball Bearing with Hot selling

Product Description

 

Product Description

Ball Bearings

Deep Groove Ball Bearings
Self Aligning Ball Bearings
Angular Contact Ball Bearings
Thrust Bearings

Applications
Electric motors
Elevators
Conveyor systems
Agriculture industry
Steering applications
Industrial pumps and drive cars
Pulp and paper industry
Industrial gearboxes
Trucks, trailers & buses

*Own Manufacturing Full Range*

GIL Bicycle Bearing 5202-ZZ Double-Row Angular Contact Ball Bearing

GIL Bicycle Bearing 5202-ZZ Double-row Angular Contact Ball Bearing. 
5202-ZZ double row shielded ball bearings possess higher radial and axial load capacities in either direction when compared to single-row ball bearings, they are found within a broad range of industrial and agricultural applications. The metal shields that are located on both sides of the bearing prevent unwanted debris from entering the bearing and also hold in the bearing grease. 

 

Product Parameters

*Remarks: 3200 / 3300 series same as 5200 / 5300 series

Bearing No. dxDxB (mm) Weight(kg)
3202 3202 ZZ 3202 2RS 15 35 15.9 0.064 

 

More Choices

Please note our catalogue of this series,do not hesitate let us know what we can do for you.
*Remarks: 3200 / 3300 series same as 5200 / 5300 series

Bearing No. dxDxB (mm) Weight(kg)
3200 3200 ZZ 3200 2RS 10 30 14.3 0.049 
3201 3201 ZZ 3201 2RS 12 32 15.9 0.057 
3202 3202 ZZ 3202 2RS 15 35 15.9 0.064 
3203 3203 ZZ 3203 2RS 17 40 17.5 0.095 
3204 3204 ZZ 3204 2RS 20 47 17.5 0.150 
3205 3205 ZZ 3205 2RS 25 52 20.6 0.175 
3206 3206 ZZ 3206 2RS 30 62 23.8 0.286 
3207 3207 ZZ 3207 2RS 35 72 27 0.436 
3208 3208 ZZ 3208 2RS 40 80 30.2 0.590 
3209 3209 ZZ 3209 2RS 45 85 30.2 0.640 
3210 3210 ZZ 3210 2RS 50 90 30.2 0.690 
3211 3211 ZZ 3211 2RS 55 100 33.3 0.986 
3212 3212 ZZ 3212 2RS 60 110 36.5 1.270 
3213 3213 ZZ 3213 2RS 65 120 38.1 1.560 
3214 3214 ZZ 3214 2RS 70 125 39.7 1.800 
3215     75 130 41.3 2.100 
3216     80 140 44.4 2.650 
3217     85 150 49.2 3.400 
3218     90 160 52.4 4.150 
3219     95 170 55.6 5.000 
3220     100 180 60.3 6.100 
3222     110 200 69.8 8.800 

Company Profile


What We Do
Comprehensive product range:

– Bearings
– Oil seals, Transmission belt
– Chain and Sprocket
– Hub assembly & Wheel bearings
– Coupling, castings
– Linear motion

About Us
Focus on a variety of industries
Provide maintenance solutions
Optimize customer inventory and reduce cost

Vision
Continue to innovate through resource integration and business diversification to maintain uniqueness in the market

Mission
Provide comprehensive quality products and thoughtful customer service

Our Values
Behavior-based, service oriented, focused on results, and committed to continuous improvement
 

Advantage
1. Advanced Automatic Lines
2. Comprehensive Range
3. Premium Quality
4. Sustainability

Factory
Granville Industrial Co., Ltd.
HangZhou Granville Mechanical & Electrical Co., Ltd.
The advantage ball bearing factory located in the bearing manufacturing center – HangZhou, China. There are 2 plants, 1 specialized in manufacturing common grade ball bearings, another 1 professional in EMQ bearings with stablized Z3V3 quality. The factory takes her every effort in purchasing the most advanced bearing process equipments, NC automatic facilities are widely used in the factory and has becomes a bearing factory owning the most advanced process equipments in China. The Granville own ball bearing factory division manufacturing a whole range of radial deep groove ball bearings, open – shield – sealed – chrome steel, stainless steel available.

Product Offering:

Bore Size 3mm and up
Closures Open, Non-contact metallic shields, Non-contact seals
Ring Material 52100 chrome steel 440C stainless steel 420C stainless steel
Seal Material Nitrile, Polyacrylic, Viton
Retainer Riveted steel, Crimped steel, Crowned steel, Crowned nylon
Precision Class ABEC1, ABEC3, ABEC5, ABEC-7
Radial Clearance C2, CO, C3, C4, C5
Heat stabilization SO, S1, S2, S3

The Granville stablized high precision EMQ bearings in 10 series for below OE industries:
1 EM bearings for automobiles
2 EM bearings for air conditioners
3 EM bearings for industrial sewing machines
4 EM bearings for textile machines
5 Bearings for electric tools
6 EM bearings for general machinery
7 EM bearings for washers
8 EM bearings for vacuum cleaners
9 Bearings for bank note counters
10 EM bearings for cleanout machines

Workshop

Quality Warranty

Granville as a manufacturer of high quality products, guarantees compliance with the highest standards relative to the use of the best steel quality in the production process, the highest standards in the design of contact surfaces, as well as the most efficient packing and lubrication of parts. From material coming, quality control through all processes. Except interal test, goods to third party inspection if required. After the center of inspection and experiment being founded, effective methods of inspecting all kinds of raw materials are mastered and then the reliability of bearings is ensured. One of our main objectives is the continued improvement in the quality of our products and processes, in pursuit of which we obtained ISO certification 9001:2008 and TS16949. 

Advantage Manufacturing Processes and Quality Control:
01 Heat Treatment
02 Centerless Grinding Machine 11200 (most advanced)
03 Automatic Production Lines for Raceway
04 Automatic Production Lines for Raceway
05 Ultrasonic Cleaning of Rings
06 Automatic Assembly
07 Ultrasonic Cleaning of Bearings
08 Automatic Greasing, Seals Pressing
09 Measurement of Bearing Vibration (Acceleration)
10 Measurement of Bearing Vibration (Speed)
11 Laser Marking
12 Automatic Packing

The Different Types of Splines in a Splined Shaft

A splined shaft is a machine component with internal and external splines. The splines are formed in 4 different ways: Involute, Parallel, Serrated, and Ball. You can learn more about each type of spline in this article. When choosing a splined shaft, be sure to choose the right 1 for your application. Read on to learn about the different types of splines and how they affect the shaft’s performance.
splineshaft

Involute splines

Involute splines in a splined shaft are used to secure and extend mechanical assemblies. They are smooth, inwardly curving grooves that resist separation during operation. A shaft with involute splines is often longer than the shaft itself. This feature allows for more axial movement. This is beneficial for many applications, especially in a gearbox.
The involute spline is a shaped spline, similar to a parallel spline. It is angled and consists of teeth that create a spiral pattern that enables linear and rotatory motion. It is distinguished from other splines by the serrations on its flanks. It also has a flat top. It is a good option for couplers and other applications where angular movement is necessary.
Involute splines are also called involute teeth because of their shape. They are flat on the top and curved on the sides. These teeth can be either internal or external. As a result, involute splines provide greater surface contact, which helps reduce stress and fatigue. Regardless of the shape, involute splines are generally easy to machine and fit.
Involute splines are a type of splines that are used in splined shafts. These splines have different names, depending on their diameters. An example set of designations is for a 32-tooth male spline, a 2,500-tooth module, and a 30 degree pressure angle. An example of a female spline, a fillet root spline, is used to describe the diameter of the splined shaft.
The effective tooth thickness of splines is dependent on the number of keyways and the type of spline. Involute splines in splined shafts should be designed to engage 25 to 50 percent of the spline teeth during the coupling. Involute splines should be able to withstand the load without cracking.

Parallel splines

Parallel splines are formed on a splined shaft by putting 1 or more teeth into another. The male spline is positioned at the center of the female spline. The teeth of the male spline are also parallel to the shaft axis, but a common misalignment causes the splines to roll and tilt. This is common in many industrial applications, and there are a number of ways to improve the performance of splines.
Typically, parallel splines are used to reduce friction in a rotating part. The splines on a splined shaft are narrower on the end face than the interior, which makes them more prone to wear. This type of spline is used in a variety of industries, such as machinery, and it also allows for greater efficiency when transmitting torque.
Involute splines on a splined shaft are the most common. They have equally spaced teeth, and are therefore less likely to crack due to fatigue. They also tend to be easy to cut and fit. However, they are not the best type of spline. It is important to understand the difference between parallel and involute splines before deciding on which spline to use.
The difference between splined and involute splines is the size of the grooves. Involute splines are generally larger than parallel splines. These types of splines provide more torque to the gear teeth and reduce stress during operation. They are also more durable and have a longer life span. And because they are used on farm machinery, they are essential in this type of application.
splineshaft

Serrated splines

A Serrated Splined Shaft has several advantages. This type of shaft is highly adjustable. Its large number of teeth allows large torques, and its shorter tooth width allows for greater adjustment. These features make this type of shaft an ideal choice for applications where accuracy is critical. Listed below are some of the benefits of this type of shaft. These benefits are just a few of the advantages. Learn more about this type of shaft.
The process of hobbing is inexpensive and highly accurate. It is useful for external spline shafts, but is not suitable for internal splines. This type of process forms synchronized shapes on the shaft, reducing the manufacturing cycle and stabilizing the relative phase between spline and thread. It uses a grinding wheel to shape the shaft. CZPT Manufacturing has a large inventory of Serrated Splined Shafts.
The teeth of a Serrated Splined Shaft are designed to engage with the hub over the entire circumference of the shaft. The teeth of the shaft are spaced uniformly around the spline, creating a multiple-tooth point of contact over the entire length of the shaft. The results of these analyses are usually satisfactory. But there are some limitations. To begin with, the splines of the Serrated Splined Shaft should be chosen carefully. If the application requires large-scale analysis, it may be necessary to modify the design.
The splines of the Serrated Splined Shaft are also used for other purposes. They can be used to transmit torque to another device. They also act as an anti-rotational device and function as a linear guide. Both the design and the type of splines determine the function of the Splined Shaft. In the automobile industry, they are used in vehicles, aerospace, earth-moving machinery, and many other industries.

Ball splines

The invention relates to a ball-spinned shaft. The shaft comprises a plurality of balls that are arranged in a series and are operatively coupled to a load path section. The balls are capable of rolling endlessly along the path. This invention also relates to a ball bearing. Here, a ball bearing is 1 of the many types of gears. The following discussion describes the features of a ball bearing.
A ball-splined shaft assembly comprises a shaft with at least 1 ball-spline groove and a plurality of circumferential step grooves. The shaft is held in a first holding means that extends longitudinally and is rotatably held by a second holding means. Both the shaft and the first holding means are driven relative to 1 another by a first driving means. It is possible to manufacture a ball-splined shaft in a variety of ways.
A ball-splined shaft features a nut with recirculating balls. The ball-splined nut rides in these grooves to provide linear motion while preventing rotation. A splined shaft with a nut that has recirculating balls can also provide rotary motion. A ball splined shaft also has higher load capacities than a ball bushing. For these reasons, ball splines are an excellent choice for many applications.
In this invention, a pair of ball-spinned shafts are housed in a box under a carrier device 40. Each of the 2 shafts extends along a longitudinal line of arm 50. One end of each shaft is supported rotatably by a slide block 56. The slide block also has a support arm 58 that supports the center arm 50 in a cantilever fashion.
splineshaft

Sector no-go gage

A no-go gauge is a tool that checks the splined shaft for oversize. It is an effective way to determine the oversize condition of a splined shaft without removing the shaft. It measures external splines and serrations. The no-go gage is available in sizes ranging from 19mm to 130mm with a 25mm profile length.
The sector no-go gage has 2 groups of diametrally opposed teeth. The space between them is manufactured to a maximum space width and the tooth thickness must be within a predetermined tolerance. This gage would be out of tolerance if the splines were measured with a pin. The dimensions of this splined shaft can be found in the respective ANSI or DIN standards.
The go-no-go gage is useful for final inspection of thread pitch diameter. It is also useful for splined shafts and threaded nuts. The thread of a screw must match the contour of the go-no-go gage head to avoid a no-go condition. There is no substitute for a quality machine. It is an essential tool for any splined shaft and fastener manufacturer.
The NO-GO gage can detect changes in tooth thickness. It can be calibrated under ISO17025 standards and has many advantages over a non-go gage. It also gives a visual reference of the thickness of a splined shaft. When the teeth match, the shaft is considered ready for installation. It is a critical process. In some cases, it is impossible to determine the precise length of the shaft spline.
The 45-degree pressure angle is most commonly used for axles and torque-delivering members. This pressure angle is the most economical in terms of tool life, but the splines will not roll neatly like a 30 degree angle. The 45-degree spline is more likely to fall off larger than the other two. Oftentimes, it will also have a crowned look. The 37.5 degree pressure angle is a compromise between the other 2 pressure angles. It is often used when the splined shaft material is harder than usual.

China supplier CZPT Bicycle Bearing 5202-ZZ Double-Row Angular Contact Ball Bearing with Hot sellingChina supplier CZPT Bicycle Bearing 5202-ZZ Double-Row Angular Contact Ball Bearing with Hot selling

China Custom CZPT ABEC-1/P0 17X47X14mm 6303-2RS High Speed Motor Ball Bearing with Great quality

Product Description

Product Description

Ball Bearings

Deep Groove Ball Bearings
Self Aligning Ball Bearings
Angular Contact Ball Bearings
Thrust Bearings

Applications
Electric motors
Elevators
Conveyor systems
Agriculture industry
Steering applications
Industrial pumps and drive cars
Pulp and paper industry
Industrial gearboxes
Trucks, trailers & buses

*Own Manufacturing Full Range*

Product Parameters

Seals Type

2RS/RS – Double Rubber Seal
Provide better protection. Has a lower rotational and temperature resistance.
Open 
No rotational resistance and higher temperature resistance.
ZZ/Z – Double Metal Shield
Provide better rotational resistance and suitable for higher temperature resistance.

6300 Medium Weight Series FYI.

6300 Medium Weight Series
Bearing No. dxDxB (mm) Weight(kg) Designation
6300 10 35 11 0.571  6300 Z 6300 ZZ 6300 RS 6300 2RS 6300 N 6300 NR
6301 12 37 12 0.0600  6301 Z 6301 ZZ 6301 RS 6301 2RS 6301 N 6301 NR
6302 15 42 13 0.0820  6302 Z 6302 ZZ 6302 RS 6302 2RS 6302 N 6302 NR
6303 17 47 14 0.1150  6303 Z 6303 ZZ 6303 RS 6303 2RS 6303 N 6303 NR
6304 20 52 15 0.1440  6304 Z 6304 ZZ 6304 RS 6304 2RS 6304 N 6304 NR
6305 25 62 17 0.2193  6305 Z 6305 ZZ 6305 RS 6305 2RS 6305 N 6305 NR
6306 30 72 19 0.3498  6306 Z 6306 ZZ 6306 RS 6306 2RS 6306 N 6306 NR
6307 35 80 21 0.4542  6307 Z 6307 ZZ 6307 RS 6307 2RS 6307 N 6307 NR
6308 40 90 23 0.6394  6308 Z 6308 ZZ 6308 RS 6308 2RS 6308 N 6308 NR
6309 45 100 25 0.8363  6309 Z 6309 ZZ 6309 RS 6309 2RS 6309 N 6309 NR
6310 50 110 27 1.0822  6310 Z 6310 ZZ 6310 RS 6310 2RS 6310 N 6310 NR
6311 55 120 29 1.3500  6311 Z 6311 ZZ 6311 RS 6311 2RS 6311 N 6311 NR
6312 60 130 31 1.7000  6312 Z 6312 ZZ 6312 RS 6312 2RS 6312 N 6312 NR
6313 65 140 33 2.1000  6313 Z 6313 ZZ 6313 RS 6313 2RS 6313 N 6313 NR
6314 70 150 35 2.5000  6314 Z 6314 ZZ 6314 RS 6314 2RS 6314 N 6314 NR
6315 75 160 37 3.0000  6315 Z 6315 ZZ 6315 RS 6315 2RS 6315 N 6315 NR
6316 80 170 39 3.6600  6316 Z 6316 ZZ 6316 RS 6316 2RS 6316 N 6316 NR
6317 85 180 41 4.2800  6317 Z 6317 ZZ 6317 RS 6317 2RS 6317 N 6317 NR
6318 90 190 43 4.0000  6318 Z 6318 ZZ 6318 RS 6318 2RS 6318 N 6318 NR
6319 95 200 45 5.7600  6319 Z 6319 ZZ 6319 RS 6319 2RS 6319 N 6319 NR
6320 100 215 47 7.0000  6320 Z 6320 ZZ 6320 RS 6320 2RS 6320 N 6320 NR
6321 105 225 49 8.0500  6321 Z 6321 ZZ 6321 RS 6321 2RS 6321 N 6321 NR
6322 110 240 50 9.5400    6322 ZZ        
6324 120 260 55 14.500    6324 ZZ        
6326 130 280 58 18.000    6226 ZZ        
6328 140 300 62 22.000    6228 ZZ        
6330 150 320 65 26.000    6230 ZZ        
6332 160 340 68 31.300    6232 ZZ        
6334 170 360 72 35.200             
6336 180 380 75 42.500             

Packaging & Shipping

Customerized packing is available.
ex.
Products will first in a plastic bag and single (color) box then into carton.
 

 

Company Profile


What We Do
Comprehensive product range:

– Bearings
– Oil seals, Transmission belt
– Chain and Sprocket
– Hub assembly & Wheel bearings
– Coupling, castings
– Linear motion

About Us
Focus on a variety of industries
Provide maintenance solutions
Optimize customer inventory and reduce cost

Vision
Continue to innovate through resource integration and business diversification to maintain uniqueness in the market

Mission
Provide comprehensive quality products and thoughtful customer service

Our Values
Behavior-based, service oriented, focused on results, and committed to continuous improvement

Advantage
1. Advanced Automatic Lines
2. Comprehensive Range
3. Premium Quality
4. Sustainability
 

Factory
Granville Industrial Co., Ltd.
HangZhou Granville Mechanical & Electrical Co., Ltd.
The advantage ball bearing factory located in the bearing manufacturing center – HangZhou, China. There are 2 plants, 1 specialized in manufacturing common grade ball bearings, another 1 professional in EMQ bearings with stablized Z3V3 quality. The factory takes her every effort in purchasing the most advanced bearing process equipments, NC automatic facilities are widely used in the factory and has becomes a bearing factory owning the most advanced process equipments in China. The Granville own ball bearing factory division manufacturing a whole range of radial deep groove ball bearings, open – shield – sealed – chrome steel, stainless steel available.

Product Offering:

Bore Size 3mm and up
Closures Open, Non-contact metallic shields, Non-contact seals
Ring Material 52100 chrome steel 440C stainless steel 420C stainless steel
Seal Material Nitrile, Polyacrylic, Viton
Retainer Riveted steel, Crimped steel, Crowned steel, Crowned nylon
Precision Class ABEC1, ABEC3, ABEC5, ABEC-7
Radial Clearance C2, CO, C3, C4, C5
Heat stabilization SO, S1, S2, 53

The Granville stablized high precision EMQ bearings in 10 series for below OE industries:
1 EM bearings for automobiles
2 EM bearings for air conditioners
3 EM bearings for industrial sewing machines
4 EM bearings for textile machines
5 Bearings for electric tools
6 EM bearings for general machinery
7 EM bearings for washers
8 EM bearings for vacuum cleaners
9 Bearings for bank note counters
10 EM bearings for cleanout machines

Production Line

Strict Quality Control

Quality Warranty

Granville as a manufacturer of high quality products, guarantees compliance with the highest standards relative to the use of the best steel quality in the production process, the highest standards in the design of contact surfaces, as well as the most efficient packing and lubrication of parts. From material coming, quality control through all processes. Except interal test, goods to third party inspection if required. After the center of inspection and experiment being founded, effective methods of inspecting all kinds of raw materials are mastered and then the reliability of bearings is ensured. One of our main objectives is the continued improvement in the quality of our products and processes, in pursuit of which we obtained ISO certification 9001:2008 and TS16949. 

Advantage Manufacturing Processes and Quality Control:
01 Heat Treatment
02 Centerless Grinding Machine 11200 (most advanced)
03 Automatic Production Lines for Raceway
04 Automatic Production Lines for Raceway
05 Ultrasonic Cleaning of Rings
06 Automatic Assembly
07 Ultrasonic Cleaning of Bearings
08 Automatic Greasing, Seals Pressing
09 Measurement of Bearing Vibration (Acceleration)
10 Measurement of Bearing Vibration (Speed)
11 Laser Marking
12 Automatic Packing
 

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product/iwTaGNgYgCVf/China-GCr15-Spherical-Rollers-for-Mechanical-Equipment-Speed-Reducer.html

 

 

How to Replace the Drive Shaft

Several different functions in a vehicle are critical to its functioning, but the driveshaft is probably the part that needs to be understood the most. A damaged or damaged driveshaft can damage many other auto parts. This article will explain how this component works and some of the signs that it may need repair. This article is for the average person who wants to fix their car on their own but may not be familiar with mechanical repairs or even driveshaft mechanics. You can click the link below for more information.
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Repair damaged driveshafts

If you own a car, you should know that the driveshaft is an integral part of the vehicle’s driveline. They ensure efficient transmission of power from the engine to the wheels and drive. However, if your driveshaft is damaged or cracked, your vehicle will not function properly. To keep your car safe and running at peak efficiency, you should have it repaired as soon as possible. Here are some simple steps to replace the drive shaft.
First, diagnose the cause of the drive shaft damage. If your car is making unusual noises, the driveshaft may be damaged. This is because worn bushings and bearings support the drive shaft. Therefore, the rotation of the drive shaft is affected. The noise will be squeaks, dings or rattles. Once the problem has been diagnosed, it is time to repair the damaged drive shaft.
Professionals can repair your driveshaft at relatively low cost. Costs vary depending on the type of drive shaft and its condition. Axle repairs can range from $300 to $1,000. Labor is usually only around $200. A simple repair can cost between $150 and $1700. You’ll save hundreds of dollars if you’re able to fix the problem yourself. You may need to spend a few more hours educating yourself about the problem before handing it over to a professional for proper diagnosis and repair.
The cost of repairing a damaged driveshaft varies by model and manufacturer. It can cost as much as $2,000 depending on parts and labor. While labor costs can vary, parts and labor are typically around $70. On average, a damaged driveshaft repair costs between $400 and $600. However, these parts can be more expensive than that. If you don’t want to spend money on unnecessarily expensive repairs, you may need to pay a little more.
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Learn how drive shafts work

While a car engine may be 1 of the most complex components in your vehicle, the driveshaft has an equally important job. The driveshaft transmits the power of the engine to the wheels, turning the wheels and making the vehicle move. Driveshaft torque refers to the force associated with rotational motion. Drive shafts must be able to withstand extreme conditions or they may break. Driveshafts are not designed to bend, so understanding how they work is critical to the proper functioning of the vehicle.
The drive shaft includes many components. The CV connector is 1 of them. This is the last stop before the wheels spin. CV joints are also known as “doughnut” joints. The CV joint helps balance the load on the driveshaft, the final stop between the engine and the final drive assembly. Finally, the axle is a single rotating shaft that transmits power from the final drive assembly to the wheels.
Different types of drive shafts have different numbers of joints. They transmit torque from the engine to the wheels and must accommodate differences in length and angle. The drive shaft of a front-wheel drive vehicle usually includes a connecting shaft, an inner constant velocity joint and an outer fixed joint. They also have anti-lock system rings and torsional dampers to help them run smoothly. This guide will help you understand the basics of driveshafts and keep your car in good shape.
The CV joint is the heart of the driveshaft, it enables the wheels of the car to move at a constant speed. The connector also helps transmit power efficiently. You can learn more about CV joint driveshafts by looking at the top 3 driveshaft questions
The U-joint on the intermediate shaft may be worn or damaged. Small deviations in these joints can cause slight vibrations and wobble. Over time, these vibrations can wear out drivetrain components, including U-joints and differential seals. Additional wear on the center support bearing is also expected. If your driveshaft is leaking oil, the next step is to check your transmission.
The drive shaft is an important part of the car. They transmit power from the engine to the transmission. They also connect the axles and CV joints. When these components are in good condition, they transmit power to the wheels. If you find them loose or stuck, it can cause the vehicle to bounce. To ensure proper torque transfer, your car needs to stay on the road. While rough roads are normal, bumps and bumps are common.
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Common signs of damaged driveshafts

If your vehicle vibrates heavily underneath, you may be dealing with a faulty propshaft. This issue limits your overall control of the vehicle and cannot be ignored. If you hear this noise frequently, the problem may be the cause and should be diagnosed as soon as possible. Here are some common symptoms of a damaged driveshaft. If you experience this noise while driving, you should have your vehicle inspected by a mechanic.
A clanging sound can also be 1 of the signs of a damaged driveshaft. A ding may be a sign of a faulty U-joint or center bearing. This can also be a symptom of worn center bearings. To keep your vehicle safe and functioning properly, it is best to have your driveshaft inspected by a certified mechanic. This can prevent serious damage to your car.
A worn drive shaft can cause difficulty turning, which can be a major safety issue. Fortunately, there are many ways to tell if your driveshaft needs service. The first thing you can do is check the u-joint itself. If it moves too much or too little in any direction, it probably means your driveshaft is faulty. Also, rust on the bearing cap seals may indicate a faulty drive shaft.
The next time your car rattles, it might be time for a mechanic to check it out. Whether your vehicle has a manual or automatic transmission, the driveshaft plays an important role in your vehicle’s performance. When 1 or both driveshafts fail, it can make the vehicle unsafe or impossible to drive. Therefore, you should have your car inspected by a mechanic as soon as possible to prevent further problems.
Your vehicle should also be regularly lubricated with grease and chain to prevent corrosion. This will prevent grease from escaping and causing dirt and grease to build up. Another common sign is a dirty driveshaft. Make sure your phone is free of debris and in good condition. Finally, make sure the driveshaft chain and cover are in place. In most cases, if you notice any of these common symptoms, your vehicle’s driveshaft should be replaced.
Other signs of a damaged driveshaft include uneven wheel rotation, difficulty turning the car, and increased drag when trying to turn. A worn U-joint also inhibits the ability of the steering wheel to turn, making it more difficult to turn. Another sign of a faulty driveshaft is the shuddering noise the car makes when accelerating. Vehicles with damaged driveshafts should be inspected as soon as possible to avoid costly repairs.

China Custom CZPT ABEC-1/P0 17X47X14mm 6303-2RS High Speed Motor Ball Bearing with Great qualityChina Custom CZPT ABEC-1/P0 17X47X14mm 6303-2RS High Speed Motor Ball Bearing with Great quality

China Hot selling 7215 7215ZZ 7215 2RS 75x130x25mm Single Row Angular Contact Ball Bearing  For Centrifugal Separator with Good quality

Product Description

Single Row Angular Contact Ball Bearing

                                                Application

          Industrial pumps                                                                       Industrial gearboxes
          
          Renewable energy                                                                   Compressors
         
          Industrial electric motors & generators                                    Trucks, trailers and buses

Introduction:
Angular contact ball bearings have inner and outer ring raceways that are displaced relative to each other
in the direction of the bearing axis. This means that these bearings are designed to accommodate combined
loads, i.e. simultaneously acting radial and axial loads.

The axial load carrying capacity of angular contact ball bearings increases as the contact angle increases. The
contact angle is defined as the angle between the line joining the points of contact of the ball and the raceways
in the radial plane, along which the combined load is transmitted from 1 raceway to another, and a line
perpendicular to the bearing axis.
The most commonly used designs are:
A. Single row angular contact ball bearings.
B. Double row angular contact ball bearings.
C. Four-point contact ball bearings.
Series Range
7200C(∝=15°)
7200AC(∝=25°)
7200B(∝=40°)

Angular Contact Ball Bearing Specification

Product Number Bore Dia (d) Outer Dia (D) Width (B) Dynamic Load Rating (Cr) (kN) Static Load Rating (Cor) (kN)
7200 10 mm 30 mm 9 mm 5.45 2.74
7201 12 mm 32mm 10mm 7.6 3.95
7202 15 mm 35mm 11mm 9.05 4.7
7203 17 mm 40mm 12mm 12 6.6
7204 20 mm 47mm 14mm 14.5 8.4
7205 25 mm 52mm 15mm 16.2 10.3
7206 30 mm 62mm 16mm 22.5 14.8
7207 35 mm 72mm 17mm 29.7 20.1
7208 40 mm 80mm 18mm 35.5 25.1
7209 45 mm 85mm 19mm 39.5 28.7
7210 50 mm 90mm 20mm 41.5 31.5
7211 55 mm 100mm 21mm 51 39.5
7212 60 mm 110mm 22mm 61.5 49
7213 65 mm 120mm 23mm 70.5 58
7214 70 mm 125mm 24mm 76.5 63.5
7215 75 mm 130mm 25mm 79 68.5
7216 80 mm 140mm 26mm 89 76
7217 85 mm 150mm 28mm 99.5 88.5
7218 90 mm 160mm 30mm 118 103
7219 95 mm 170mm 32mm 133 118
7220 100 mm 180mm 34mm 144 126
7221 105 mm 190mm 36mm 157 142
7222 110 mm 200mm 38mm 170 158
7224 120 mm 215mm 40mm 183 177
7226 130 mm 230mm 40mm 196 198
7228 140 mm 250mm 42mm 203 215
7230 150 mm 270mm 45mm 232 259
7232 160 mm 290mm 48mm 263 305
7234 170 mm 310mm 52mm 295 360
7236 180 mm 320mm 52mm 305 385
7238 190 mm 340mm 55mm 305 390
7240 200 mm 360mm 58mm 335 450

                                                 
                                                               About Us

HENGLI Machinery Company is a well-established Chinese bearing supplier. We design, manufacture and wholesale bearings.
Our specialized manufacturer of Spherical Roller Bearing & Cylindrical Roller Bearing, XIHU (WEST LAKE) DIS. Rolling Bearing Co., Ltd was
established in 1970 and is accredited by the Chinese Ministry of Machine Building.

We invested in 2 additional specialized bearing factories, which allow us to provide our clients with top of the line products 
such as Needle Roller Bearings, Spherical Plain Bearings, Rod Ends Bearings, Ball Joint Bearings, Tapered Roller Bearings,
Wheel Hub Bearings and Non-Standard Bearings.

FAQ
Q1 – What is our advantages?

     A    – Manufacturer – Do it only with the Best;

            -Your Choice make different. 

Q2 – Our Products

 A   – Spherical Roller Bearing, Cylindrical Roller Bearing, Needle Roller Bearing, Cam Followers, Thrust Bearing

      – Spherical Plain Bearing, Rod End, Ball Joint, Wheel Hub, Tapered Roller Bearing

Q3 – Process of our production

 A – Heat Treatment – Grinding – Parts Inspection – Assembly – Final Inspection – Packing

Q4 – How to customize bearing(non-standard) from your company?

 A -We offer OEM,Customized(Non-standard) service and you need to provide drawing and detailed Technical Data.

Q5 –   What should I care before installation?

 A   – Normally, the preservative with which new bearings are coated before leaving the factory does not need to be

        removed; it is only necessary to wipe off the outside cylin­drical surface and bore, if the grease is not compatible

        with the preservative, it is necessary to wash and carefully dry the bearing.

      -Bearings should be installed in a dry, dust-free room away from metal working or other machines producing

        swarf and dust.

Q6 – How to stock and maintenance my bearings right? 

 A   – Do not store bearings directly on concrete floors, where water can condense and collect on the bearing;

      -Store the bearings on a pallet or shelf, in an area where the bearings will not be subjected to high humidity

       or sudden and severe temperature changes that may result in condensation forming;

      -Always put oiled paper or, if not available, plastic sheets between rollers and cup races of tapered roller bearings.

Driveshaft structure and vibrations associated with it

The structure of the drive shaft is critical to its efficiency and reliability. Drive shafts typically contain claw couplings, rag joints and universal joints. Other drive shafts have prismatic or splined joints. Learn about the different types of drive shafts and how they work. If you want to know the vibrations associated with them, read on. But first, let’s define what a driveshaft is.
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transmission shaft

As the demand on our vehicles continues to increase, so does the demand on our drive systems. Higher CO2 emission standards and stricter emission standards increase the stress on the drive system while improving comfort and shortening the turning radius. These and other negative effects can place significant stress and wear on components, which can lead to driveshaft failure and increase vehicle safety risks. Therefore, the drive shaft must be inspected and replaced regularly.
Depending on your model, you may only need to replace 1 driveshaft. However, the cost to replace both driveshafts ranges from $650 to $1850. Additionally, you may incur labor costs ranging from $140 to $250. The labor price will depend on your car model and its drivetrain type. In general, however, the cost of replacing a driveshaft ranges from $470 to $1850.
Regionally, the automotive driveshaft market can be divided into 4 major markets: North America, Europe, Asia Pacific, and Rest of the World. North America is expected to dominate the market, while Europe and Asia Pacific are expected to grow the fastest. Furthermore, the market is expected to grow at the highest rate in the future, driven by economic growth in the Asia Pacific region. Furthermore, most of the vehicles sold globally are produced in these regions.
The most important feature of the driveshaft is to transfer the power of the engine to useful work. Drive shafts are also known as propeller shafts and cardan shafts. In a vehicle, a propshaft transfers torque from the engine, transmission, and differential to the front or rear wheels, or both. Due to the complexity of driveshaft assemblies, they are critical to vehicle safety. In addition to transmitting torque from the engine, they must also compensate for deflection, angular changes and length changes.

type

Different types of drive shafts include helical shafts, gear shafts, worm shafts, planetary shafts and synchronous shafts. Radial protruding pins on the head provide a rotationally secure connection. At least 1 bearing has a groove extending along its circumferential length that allows the pin to pass through the bearing. There can also be 2 flanges on each end of the shaft. Depending on the application, the shaft can be installed in the most convenient location to function.
Propeller shafts are usually made of high-quality steel with high specific strength and modulus. However, they can also be made from advanced composite materials such as carbon fiber, Kevlar and fiberglass. Another type of propeller shaft is made of thermoplastic polyamide, which is stiff and has a high strength-to-weight ratio. Both drive shafts and screw shafts are used to drive cars, ships and motorcycles.
Sliding and tubular yokes are common components of drive shafts. By design, their angles must be equal or intersect to provide the correct angle of operation. Unless the working angles are equal, the shaft vibrates twice per revolution, causing torsional vibrations. The best way to avoid this is to make sure the 2 yokes are properly aligned. Crucially, these components have the same working angle to ensure smooth power flow.
The type of drive shaft varies according to the type of motor. Some are geared, while others are non-geared. In some cases, the drive shaft is fixed and the motor can rotate and steer. Alternatively, a flexible shaft can be used to control the speed and direction of the drive. In some applications where linear power transmission is not possible, flexible shafts are a useful option. For example, flexible shafts can be used in portable devices.
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put up

The construction of the drive shaft has many advantages over bare metal. A shaft that is flexible in multiple directions is easier to maintain than a shaft that is rigid in other directions. The shaft body and coupling flange can be made of different materials, and the flange can be made of a different material than the main shaft body. For example, the coupling flange can be made of steel. The main shaft body is preferably flared on at least 1 end, and the at least 1 coupling flange includes a first generally frustoconical projection extending into the flared end of the main shaft body.
The normal stiffness of fiber-based shafts is achieved by the orientation of parallel fibers along the length of the shaft. However, the bending stiffness of this shaft is reduced due to the change in fiber orientation. Since the fibers continue to travel in the same direction from the first end to the second end, the reinforcement that increases the torsional stiffness of the shaft is not affected. In contrast, a fiber-based shaft is also flexible because it uses ribs that are approximately 90 degrees from the centerline of the shaft.
In addition to the helical ribs, the drive shaft 100 may also contain reinforcing elements. These reinforcing elements maintain the structural integrity of the shaft. These reinforcing elements are called helical ribs. They have ribs on both the outer and inner surfaces. This is to prevent shaft breakage. These elements can also be shaped to be flexible enough to accommodate some of the forces generated by the drive. Shafts can be designed using these methods and made into worm-like drive shafts.

vibration

The most common cause of drive shaft vibration is improper installation. There are 5 common types of driveshaft vibration, each related to installation parameters. To prevent this from happening, you should understand what causes these vibrations and how to fix them. The most common types of vibration are listed below. This article describes some common drive shaft vibration solutions. It may also be beneficial to consider the advice of a professional vibration technician for drive shaft vibration control.
If you’re not sure if the problem is the driveshaft or the engine, try turning on the stereo. Thicker carpet kits can also mask vibrations. Nonetheless, you should contact an expert as soon as possible. If vibration persists after vibration-related repairs, the driveshaft needs to be replaced. If the driveshaft is still under warranty, you can repair it yourself.
CV joints are the most common cause of third-order driveshaft vibration. If they are binding or fail, they need to be replaced. Alternatively, your CV joints may just be misaligned. If it is loose, you can check the CV connector. Another common cause of drive shaft vibration is improper assembly. Improper alignment of the yokes on both ends of the shaft can cause them to vibrate.
Incorrect trim height can also cause driveshaft vibration. Correct trim height is necessary to prevent drive shaft wobble. Whether your vehicle is new or old, you can perform some basic fixes to minimize problems. One of these solutions involves balancing the drive shaft. First, use the hose clamps to attach the weights to it. Next, attach an ounce of weight to it and spin it. By doing this, you minimize the frequency of vibration.
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cost

The global driveshaft market is expected to exceed (xxx) million USD by 2028, growing at a compound annual growth rate (CAGR) of XX%. Its soaring growth can be attributed to several factors, including increasing urbanization and R&D investments by leading market players. The report also includes an in-depth analysis of key market trends and their impact on the industry. Additionally, the report provides a comprehensive regional analysis of the Driveshaft Market.
The cost of replacing the drive shaft depends on the type of repair required and the cause of the failure. Typical repair costs range from $300 to $750. Rear-wheel drive cars usually cost more. But front-wheel drive vehicles cost less than four-wheel drive vehicles. You may also choose to try repairing the driveshaft yourself. However, it is important to do your research and make sure you have the necessary tools and equipment to perform the job properly.
The report also covers the competitive landscape of the Drive Shafts market. It includes graphical representations, detailed statistics, management policies, and governance components. Additionally, it includes a detailed cost analysis. Additionally, the report presents views on the COVID-19 market and future trends. The report also provides valuable information to help you decide how to compete in your industry. When you buy a report like this, you are adding credibility to your work.
A quality driveshaft can improve your game by ensuring distance from the tee and improving responsiveness. The new material in the shaft construction is lighter, stronger and more responsive than ever before, so it is becoming a key part of the driver. And there are a variety of options to suit any budget. The main factor to consider when buying a shaft is its quality. However, it’s important to note that quality doesn’t come cheap and you should always choose an axle based on what your budget can handle.

China Hot selling 7215 7215ZZ 7215 2RS 75x130x25mm Single Row Angular Contact Ball Bearing  For Centrifugal Separator with Good qualityChina Hot selling 7215 7215ZZ 7215 2RS 75x130x25mm Single Row Angular Contact Ball Bearing  For Centrifugal Separator with Good quality

China supplier Machine Tool Spindle Machine Gas Turbine Ball Bearing 6010 6012 6014 6016 RS Zz CZPT Deep Groove Ball Bearing 6012zz with Hot selling

Product Description

Product Description

Product Name Deep Groove Ball Bearings
Brand Name NMN
Material Chrome Steel  GCr15  Stainless Steel  Ceramic  Nylon
Cage Steel  Brass  Nylon
Weight(Kg) 0.385
Bearing Clearance C0 C2 C3 C4 C5
Seals Type Z 2Z 2RS Znr 2RS1 2rsh 2rsl 2znr
Precision Grade P0  P6  P5  P4  P2
Vibration V1 V2 V3 V4
Quality ABEC1, 3, 5, 7,9
Load Rating(kN) Cr 29.5
Cor 23.2
Limiting Speed Grease 5000
Oil 6300
Serice OEM
Sample Available
Port HangZhou/ZheJiang

Product Details

Single row deep groove ball bearings are used in a wide variety of applications, they are simple in design, non-separable, suitable for high speeds and are robust in operation, and need little maintenance. Deep raceway grooves and the close conformity between the raceway grooves and the balls enable deep groove ball bearings to accommodate axial loads in both directions, in addition to radial loads.

6012 bearing has the advantages of low noise, low friction and high speed, and is equipped with sealing cover, grease, etc., to extend the life of the product.
We provide OEM, ODM and other services, and provide you with relevant consulting information to help you with bearing selection, clearance configuration, product life and reliability analysis. We offer localized shipping solutions to save your shipping costs.
We can provide free samples, can accept custom LOGO or drawings, can design packaging according to requirements.

Bearing Models

 

Number Specifiction Load Rating (KN) Limiting Speed (r/min) Weight(Kg/pc)
d(mm) D(mm) B(mm) r(mm) Cr Cor Grease Oil
604 4 12 4 0.2 0.9 0.36 43000 51000 0.002
605 5 14 5 0.2 1.33 0.505 39000 46000 0.0035
606 6 17 6 0.3 2.19 0.865 30000 38000 0.006
607 7 19 6 0.3 2.24 0.91 28000 3600 0.008
608 8 22 7 0.3 3.35 1.4 26000 34000 0.012
609 9 24 7 0.3 3.4 1.45 22000 30000 0.014
6000 10 26 8 0.3 4.55 1.96 20000 28000 0.019
6001 1 28 8 0.3 5.1 2.39 19000 26000 0.571
6002 15 32 9 0.3 5.6 2.84 18000 24000 0.03
6003 17 35 10 0.3 6.8 3.35 17000 22000 0.039
6004 20 42 12 0.6 9. 5.05 1000 19000 0.069
6005 25 47 12 0.6 10.1 5.85 13000 17000 0.08
6006 30 55 13 1.0 13.2 8.3 12000 15000 0.116
6007 35 62 14 1.0 16 10.3 10000 13000 0.155
6008 40 8 15 1.0 16.8 11.5 8000 11000 0.185
6009 45 5 16 1.0 21 15.1 7200 9000 0.231
6571 50 80 16 1.0 21.8 16.6 6400 7800 0.25
6011 55 90 18 1.1 28.3 21.2 5700 7000 0.362
6012 60 95 18 1.1 29.5 23.2 5000 6300 0.385
6013 65 100 18 1.1 31.9 25 4800 6100 0.44
6014 70 110 20 1.1 39.7 31 4600 5800 0.6
6015 75 115 20 1.1 41.6 33.5 4400 5600 0.64
6016 80 125 22 1.1 47.5 40 4300 5500 0.854
6017 85 130 22 1.1 49.5 43 200 5300 0.89
6018 90 140 24 1.5 58 49.5 4000 5100 1.02
624 4 13 5 0.2 1.31 0.49 36000 45000 0.0032
625 5 16 5 0.3 1.76 0.68 32000 40000 0.0048
626 6 19 6 0.3 2.34 0.885 28000 36000 0.0081
627 7 22 7 0.3 3.35 1.40 26000 34000 0.013
628 8 24 8 0.3 4.00 1.59 24000 32000 0.017
629 9 26 8 0.3 4.55 1.96 22000 40000 0.0048

Packaging & Shipping

·Plastic rolling packing + Plastic bag + Paper carton
·Single Box + Plastic rolling packing + Plastic bag + Paper carton+pallet
·According to customer requirement

Applications

About Us

ZheJiang CZPT Bearing Group is a professional bearing manufacturer and exporter in China. We have been engaged in bearing industry for 20 years. Our company is specialized in producing Deep Groove Ball Bearings, Tapered Roller Bearings, Spherical Roller Bearings and Special Bearings in accordance with Customers’ designs.Our bearings has been widely applied into agricultural equipments, home appliances, power equipments, machine tools, automotives and engineering machinery, etc.

Our production is strictly executed with ISO9001 and ISO14001. Our products are mainly exported to Singapore, South Kora, Vietnam, Thailand, Turkey, Pakistan, Australia, Polan, France, UK, South America, USA, South Africa and other countries and regions of the world, with great public praise of high quality and reasonable price.

Company Profile

FAQ

1.Q:Could you supply free sample of bearing for our test?
A:Yes. Please afford the express fee and we will send you the sample within your first order.

2.Q:Sample time?
A:Within 3-4 days.

3.Q:Are you a factory or a Trade Company for Bearing ?
A:We are the factory.

4.Q:Whether you could make your products by our color?
A:Yes, The color of products can be customized if you can meet our MOQ.

5.Q:Could you accept OEM and customize?
A:Yes, OEM and ODM are accepted and we can customize for you according to sample or drawing.

6.Q:Do you have stocks?
A:Yes, most of the bearings showing on alibaba are in stock,especialy big bearings.

 

 

 

We sincerely hope we can build a long term relationship with all the clients and we also have great confidence in cooperating with every potential customer by most premium service and competitive price.

Welcome your inquiry and welcome your visit. 

What Are Screw Shaft Threads?

A screw shaft is a threaded part used to fasten other components. The threads on a screw shaft are often described by their Coefficient of Friction, which describes how much friction is present between the mating surfaces. This article discusses these characteristics as well as the Material and Helix angle. You’ll have a better understanding of your screw shaft’s threads after reading this article. Here are some examples. Once you understand these details, you’ll be able to select the best screw nut for your needs.
screwshaft

Coefficient of friction between the mating surfaces of a nut and a screw shaft

There are 2 types of friction coefficients. Dynamic friction and static friction. The latter refers to the amount of friction a nut has to resist an opposing motion. In addition to the material strength, a higher coefficient of friction can cause stick-slip. This can lead to intermittent running behavior and loud squeaking. Stick-slip may lead to a malfunctioning plain bearing. Rough shafts can be used to improve this condition.
The 2 types of friction coefficients are related to the applied force. When applying force, the applied force must equal the nut’s pitch diameter. When the screw shaft is tightened, the force may be removed. In the case of a loosening clamp, the applied force is smaller than the bolt’s pitch diameter. Therefore, the higher the property class of the bolt, the lower the coefficient of friction.
In most cases, the screwface coefficient of friction is lower than the nut face. This is because of zinc plating on the joint surface. Moreover, power screws are commonly used in the aerospace industry. Whether or not they are power screws, they are typically made of carbon steel, alloy steel, or stainless steel. They are often used in conjunction with bronze or plastic nuts, which are preferred in higher-duty applications. These screws often require no holding brakes and are extremely easy to use in many applications.
The coefficient of friction between the mating surfaces of t-screws is highly dependent on the material of the screw and the nut. For example, screws with internal lubricated plastic nuts use bearing-grade bronze nuts. These nuts are usually used on carbon steel screws, but can be used with stainless steel screws. In addition to this, they are easy to clean.

Helix angle

In most applications, the helix angle of a screw shaft is an important factor for torque calculation. There are 2 types of helix angle: right and left hand. The right hand screw is usually smaller than the left hand one. The left hand screw is larger than the right hand screw. However, there are some exceptions to the rule. A left hand screw may have a greater helix angle than a right hand screw.
A screw’s helix angle is the angle formed by the helix and the axial line. Although the helix angle is not usually changed, it can have a significant effect on the processing of the screw and the amount of material conveyed. These changes are more common in 2 stage and special mixing screws, and metering screws. These measurements are crucial for determining the helix angle. In most cases, the lead angle is the correct angle when the screw shaft has the right helix angle.
High helix screws have large leads, sometimes up to 6 times the screw diameter. These screws reduce the screw diameter, mass, and inertia, allowing for higher speed and precision. High helix screws are also low-rotation, so they minimize vibrations and audible noises. But the right helix angle is important in any application. You must carefully choose the right type of screw for the job at hand.
If you choose a screw gear that has a helix angle other than parallel, you should select a thrust bearing with a correspondingly large center distance. In the case of a screw gear, a 45-degree helix angle is most common. A helix angle greater than zero degrees is also acceptable. Mixing up helix angles is beneficial because it allows for a variety of center distances and unique applications.
screwshaft

Thread angle

The thread angle of a screw shaft is measured from the base of the head of the screw to the top of the screw’s thread. In America, the standard screw thread angle is 60 degrees. The standard thread angle was not widely adopted until the early twentieth century. A committee was established by the Franklin Institute in 1864 to study screw threads. The committee recommended the Sellers thread, which was modified into the United States Standard Thread. The standardized thread was adopted by the United States Navy in 1868 and was recommended for construction by the Master Car Builders’ Association in 1871.
Generally speaking, the major diameter of a screw’s threads is the outside diameter. The major diameter of a nut is not directly measured, but can be determined with go/no-go gauges. It is necessary to understand the major and minor diameters in relation to each other in order to determine a screw’s thread angle. Once this is known, the next step is to determine how much of a pitch is necessary to ensure a screw’s proper function.
Helix angle and thread angle are 2 different types of angles that affect screw efficiency. For a lead screw, the helix angle is the angle between the helix of the thread and the line perpendicular to the axis of rotation. A lead screw has a greater helix angle than a helical one, but has higher frictional losses. A high-quality lead screw requires a higher torque to rotate. Thread angle and lead angle are complementary angles, but each screw has its own specific advantages.
Screw pitch and TPI have little to do with tolerances, craftsmanship, quality, or cost, but rather the size of a screw’s thread relative to its diameter. Compared to a standard screw, the fine and coarse threads are easier to tighten. The coarser thread is deeper, which results in lower torques. If a screw fails because of torsional shear, it is likely to be a result of a small minor diameter.

Material

Screws have a variety of different sizes, shapes, and materials. They are typically machined on CNC machines and lathes. Each type is used for different purposes. The size and material of a screw shaft are influenced by how it will be used. The following sections give an overview of the main types of screw shafts. Each 1 is designed to perform a specific function. If you have questions about a specific type, contact your local machine shop.
Lead screws are cheaper than ball screws and are used in light-duty, intermittent applications. Lead screws, however, have poor efficiency and are not recommended for continuous power transmission. But, they are effective in vertical applications and are more compact. Lead screws are typically used as a kinematic pair with a ball screw. Some types of lead screws also have self-locking properties. Because they have a low coefficient of friction, they have a compact design and very few parts.
Screws are made of a variety of metals and alloys. Steel is an economical and durable material, but there are also alloy steel and stainless steel types. Bronze nuts are the most common and are often used in higher-duty applications. Plastic nuts provide low-friction, which helps reduce the drive torques. Stainless steel screws are also used in high-performance applications, and may be made of titanium. The materials used to create screw shafts vary, but they all have their specific functions.
Screws are used in a wide range of applications, from industrial and consumer products to transportation equipment. They are used in many different industries, and the materials they’re made of can determine their life. The life of a screw depends on the load that it bears, the design of its internal structure, lubrication, and machining processes. When choosing screw assemblies, look for a screw made from the highest quality steels possible. Usually, the materials are very clean, so they’re a great choice for a screw. However, the presence of imperfections may cause a normal fatigue failure.
screwshaft

Self-locking features

Screws are known to be self-locking by nature. The mechanism for this feature is based on several factors, such as the pitch angle of the threads, material pairing, lubrication, and heating. This feature is only possible if the shaft is subjected to conditions that are not likely to cause the threads to loosen on their own. The self-locking ability of a screw depends on several factors, including the pitch angle of the thread flank and the coefficient of sliding friction between the 2 materials.
One of the most common uses of screws is in a screw top container lid, corkscrew, threaded pipe joint, vise, C-clamp, and screw jack. Other applications of screw shafts include transferring power, but these are often intermittent and low-power operations. Screws are also used to move material in Archimedes’ screw, auger earth drill, screw conveyor, and micrometer.
A common self-locking feature for a screw is the presence of a lead screw. A screw with a low PV value is safe to operate, but a screw with high PV will need a lower rotation speed. Another example is a self-locking screw that does not require lubrication. The PV value is also dependent on the material of the screw’s construction, as well as its lubrication conditions. Finally, a screw’s end fixity – the way the screw is supported – affects the performance and efficiency of a screw.
Lead screws are less expensive and easier to manufacture. They are a good choice for light-weight and intermittent applications. These screws also have self-locking capabilities. They can be self-tightened and require less torque for driving than other types. The advantage of lead screws is their small size and minimal number of parts. They are highly efficient in vertical and intermittent applications. They are not as accurate as lead screws and often have backlash, which is caused by insufficient threads.

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