Product Description

Boat/Yacht/Yachting Trailer Wheel Hub Bearings Kit K3-110 25580/25520 15123/15245 with Double Lip 10-10 Seal for 5200-6000 lbs Tandem Axles/Spindle

Trailer Wheel Bearing Kit

Trailer Wheel Bearing Kits include:

• 25580/25520 Inner Bearing Set (1-3/4″ ID X 3.265″ OD)
• 14125A/14276 Outer Bearing Set (1-1/4″ ID X 2.717″ OD)
• 10-10/21333TB (2.25″ ID x 3.376″ OD) Double Lip Grease Seal

Application:
Fits 5200 to 7000 lbs EZ-Lube Axles/Spindle

Bearing Specification

Trailer Hub Wheel Bearing Kit
 

Part #	Axle Weight Capacity	Outer Bearing	Inner Bearing	Seal	Seal ID
K1-100	2,000 & 2,200 lb	L44643/10	L44643/10	12192TB	1.250″
K1-150	2,000 & 2,200 lb	L44649/10	L44649/10	10-60	1.500″
K2-100	3,500 lb	L44649/10	L68149/10	44488	1.718″
K3-100	5,200 & 6,000 lb	15123/15245	25580/25520	10-36	2.250″
K3-110	5,200 & 6,000 lb	15123/15245	25580/25520	44479	2.125″
K3-200	7,000 lb	14125A/14276	25580/25520	10-36	2.250″
K3-210	7,000 lb	14125A/14276	25580/25520	44479	2.125″
K3-300	5,200 & 6,000 lb	LM67048/10	25580/25520	10-36	2.250″
K3-310	5,200 & 6,000 lb	LM67048/10	25580/25520	44479	2.125″

Bearing Detailed Pictures

Reasons to Choose Us ?

Reasons to choose CZPT Bearings as your sprag clutch freewheel 1 way bearings partner

1. Bearing designing: Guomai has our own bearing R&D team and adopts Germany technology. This enables us to provide OEM and ODM service to you.
2. Production process:We strictly follow the 5S production process and acquired ISO9001:2008 quality management system certificate. Besides, we introduced from abroad world famous brands lathes and heat treatment equipment, this enables us to provide high precision bearings with similar quality to world famous brands such as SKF,TIMKEN,NSK,NTN,KOYO,NACHI and so on.
3. Materials: To ensure the high quality of bearings, we use high carbon chrome bearing steel which provides high rigidity, and high resistance to CZPT wear to produce the bearings. Low carbon cold rolled steel and low carbon stainless steel is also used according to customers’ requirements.
4. Quality inspection: All bearings will be strictly tested before packing. We have CZPT talysurf, hardness meter,clearance detector,vibration(speed) measuring instrument,roundness instrument to guarantee all bearings are qualified with the standards.
5. Lubricants: Suitable lubricants are used to protect the bearings from oxidation or corrosion of parts thus enable our bearings with longer lifetime, low noise and better high temperature performance. Selection of lubricants is generally governed by the bearing application. Right choice of high quality lubricants could prevent metal to metal contact and conduct heat away from the bearings.
6. Packing: Guomai bearings pay attention to every detail in the bearing production process. We adopt plastic bag, Kraft paper, thick paper box and cartons to protect the bearings from unexpectable damage during the transportation and warehouse stock.
7. Factory direct marketing: We are the factory and not the distributor or trading agent, so we could provide the same quality with competitive price.

Guomai’s Featured Bearings

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About ZheJiang CZPT Bearing

ZheJiang CZPT Bearing Co.,Ltd(hereinafter referred to as Guomai) was established in 1999, with more than 20 years of bearing research and manufacturing experience. The factory covers an area of 16000 square meters,7000 of which is manufacturing area and the other is office and warehouse. CZPT has large stock for normally used bearing models and this enables us to deliver the bearing to customers within the shortest time.

There are total 160 staffs, 6 automatic bearing assembly lines,116 CNC machines and 22 sets of precise inspection instruments. We not only have our own R&D team but also cooperate with ZheJiang University of Science and Technology, HangZhou Bearing Research Institute to develop new bearing designing and manufacturing technology.
In addition to conventional bearings, CZPT also provides OEM and ODM service to our respectable customers to meet their individual requirements.We introduced advanced milling, turning machines, heat treatment equipment and bearing testing machines to guarantee the quality of the bearings because we know “Quality is the life of Guomai” .Now our top products include taper roller bearing, angular contact ball bearing, deep groove bearing ,spherical bearing and cylindrical roller bearing with P5, P4 accuracy grade.

After so many years of developing, CZPT has built up an excellent sales network within China. Our 2 bearing brands “CVZ” and “Bentu” are well known and have high reputation within the industrial equipment and components field. Moreover, with confidence of our bearing quality, we started to export our bearings 4 years ago. Customers from Europe, North America, Middle East, Southeast Asia and Africa have enjoyed the happiness our bearings brought to them.

Guomai Bearing always upholds “WIN-WIN” spirit and believes in “Details determine success” philosophy, and keep improving bearing quality in the past 20 years.  Some series of our bearings have similar quality with SKF, NSK, Timken, NACHI, KOYO, CZPT and other world famous brands but with lower price.
Looking to the future, CZPT will insist on the technology innovation and processing levels to provide the most appropriate bearing products and service to our customers.
 

Bearing web page description and models may be limited, please contact us for more information.

Packaging & Shipping

Guomai Bearings, Roll Together with the World and You!!!

L68149/L68110 L68149/10 L68149/68110 68149/10 68149/68110 LM12749/LM12711 LM12749/12711 LM12749/11 12749/12711 12749/11 L44649/L44610 L44649/44610 L44649/10 44649/44610 44649/10 15243/15245 15243/45 25580/25520 25580/20 L68149/L68111 L68149/68111 L68149/11 68149/68111 68149/11 14125A 14125

The Functions of Splined Shaft Bearings

Splined shafts are the most common types of bearings for machine tools. They are made of a wide variety of materials, including metals and non-metals such as Delrin and nylon. They are often fabricated to reduce deflection. The tooth profile will become deformed with time, as the shaft is used over a long period of time. Splined shafts are available in a huge range of materials and lengths.

Functions

Splined shafts are used in a variety of applications and industries. They are an effective anti-rotational device, as well as a reliable means of transmitting torque. Other types of shafts are available, including key shafts, but splines are the most convenient for transmitting torque. The following article discusses the functions of splines and why they are a superior choice. Listed below are a few examples of applications and industries in which splines are used.
Splined shafts can be of several styles, depending on the application and mechanical system in question. The differences between splined shaft styles include the design of teeth, overall strength, transfer of rotational concentricity, sliding ability, and misalignment tolerance. Listed below are a few examples of splines, as well as some of their benefits. The difference between these styles is not mutually exclusive; instead, each style has a distinct set of pros and cons.
A splined shaft is a cylindrical shaft with teeth or ridges that correspond to a specific angular position. This allows a shaft to transfer torque while maintaining angular correspondence between tracks. A splined shaft is defined as a cylindrical member with several grooves cut into its circumference. These grooves are equally spaced around the shaft and form a series of projecting keys. These features give the shaft a rounded appearance and allow it to fit perfectly into a grooved cylindrical member.
While the most common applications of splines are for shortening or extending shafts, they can also be used to secure mechanical assemblies. An “involute spline” spline has a groove that is wider than its counterparts. The result is that a splined shaft will resist separation during operation. They are an ideal choice for applications where deflection is an issue.
A spline shaft’s radial torsion load distribution is equally distributed, unless a bevel gear is used. The radial torsion load is evenly distributed and will not exert significant load concentration. If the spline couplings are not aligned correctly, the spline connection can fail quickly, causing significant fretting fatigue and wear. A couple of papers discuss this issue in more detail.

Types

There are many different types of splined shafts. Each type features an evenly spaced helix of grooves on its outer surface. These grooves are either parallel or involute. Their shape allows them to be paired with gears and interchange rotary and linear motion. Splines are often cold-rolled or cut. The latter has increased strength compared to cut spines. These types of shafts are commonly used in applications requiring high strength, accuracy, and smoothness.
Another difference between internal and external splined shafts lies in the manufacturing process. The former is made of wood, while the latter is made of steel or a metal alloy. The process of manufacturing splined shafts involves cutting furrows into the surface of the material. Both processes are expensive and require expert skill. The main advantage of splined shafts is their adaptability to a wide range of applications.
In general, splined shafts are used in machinery where the rotation is transferred to an internal splined member. This member can be a gear or some other rotary device. These types of shafts are often packaged together as a hub assembly. Cleaning and lubricating are essential to the life of these components. If you’re using them on a daily basis, you’ll want to make sure to regularly inspect them.
Crowned splines are usually involute. The teeth of these splines form a spiral pattern. They are used for smaller diameter shafts because they add strength. Involute splines are also used on instrument drives and valve shafts. Serration standards are found in the SAE. Both kinds of splines can also contain a ball bearing for high torque. The difference between the 2 types of splines is the number of teeth on the shaft.
Internal splines have many advantages over external ones. For example, an internal spline shaft can be made using a grinding wheel instead of a CNC machine. It also uses a more accurate and economical process. Furthermore, it allows for a shorter manufacturing cycle, which is essential when splining high-speed machines. In addition, it stabilizes the relative phase between the spline and thread.

Manufacturing methods

There are several methods used to fabricate a splined shaft. Key and splined shafts are constructed from 2 separate parts that are shaped in a synchronized manner to transfer torque uniformly. Hot rolling is 1 method, while cold rolling utilizes low temperatures to form metal. Both methods enhance mechanical properties, surface finishes, and precision. The advantage of cold rolling is its cost-effectiveness.
Cold forming is 1 method, as well as machining and assembling. Cold forming is a unique process that allows the spline to be shaped to the desired shape. The resulting shape provides maximum contact area and torsional strength. Standard splines are available in standard sizes, but custom lengths can also be ordered. CZPT offers various auxiliary equipment, such as mating sleeves and flanged bushings.
Cold forging is another method. This method produces long splined shafts that are used in automobile propellers. After the spline portion is cut out, it is worked on in a hobbing machine. Work hardening enhances the root strength of the splined portion. It can be used for bearings, gears, and other mechanical components. Listed below are the manufacturing methods for splined shafts.
Parallel splines are the simplest of the splined shaft manufacturing methods. Parallel splines are usually welded to shafts, while involute splines are made of metal or non-metals. Splines are available in a wide variety of lengths and materials. The process is usually accompanied by a process called milling. The workpiece rotates to produce the serrated surface.
Splines are internal or external grooves in a splined shaft. They work in combination with keyways to transfer torque. Male and female splines are used in gears. Female and male splines correspond to 1 another to ensure proper angular correspondence. Involute splines have more surface area and thus are stronger than external splines. Moreover, they help the shaft fit into a grooved cylindrical member without misalignment.
A variety of other methods of manufacturing a splined shaft can be used to produce a splined shaft. Spline shafts can be produced using broaching and shaping, 2 precision machining methods. Broaching uses a metal tool with successively larger teeth to remove metal and create ridges and holes in the surface of a material. However, this process is expensive and requires special expertise.

Applications

The splined shaft is a mechanical component with a helix-like shape formed by the equal spacing of grooves in a circular ring. The splines can either have parallel or involute sides. The splines minimize stress concentration in stationary joints and can be used in both rotary and linear motion. In some cases, splines are rolled rather than cut. The latter is more durable than cut splines and is often used in applications requiring high strength, accuracy, and smooth finish.
Splined shafts are commonly made of carbon steel. This alloy steel has a low carbon content, making it easy to work with. Carbon steel is a great choice for splines because it is malleable. Generally, high-quality carbon steel provides a consistent motion. Steel alloys are also available that contain nickel, chromium, copper, and other metals. If you’re unsure of the right material for your application, you can consult a spline chart.
Splines are a versatile mechanical component. They are easy to cut and fit. Splines can be internal or external, with teeth positioned at equal intervals on both sides of the shaft. This allows the shaft to engage with the hub around the entire circumference of the hub. It also increases load capacity by creating a constant multiple-tooth point of contact with the hub. For this reason, they’re used extensively in rotary and linear motion.
Splined shafts are used in a wide variety of industries. CZPT Inc. offers custom and standard splined shafts for a variety of applications. When choosing a splined shaft for a specific application, consider the surrounding mated components, torque requirements, and size requirements. These 3 factors will make it the ideal choice for your rotary equipment. And you’ll be pleased with the end result!
There are many types of splines and their applications are endless. They transfer torque and angular misalignment between parts, and they also enable the axial rotation of assembled components. Therefore, splines are an essential component of machinery and are used in a wide range of applications. This type of shaft can be found in various types of machines, from household appliances to industrial machinery. So, the next time you’re looking for a splined shaft, make sure you look for a splined one.