China manufacturer Wholesale Bearings Plastic Cage POM Thrust Ball Bearing 51203 51204 51205 51206 wheel bearing

Product Description

Product Description


Packaging & Shipping


Company Profile


Our Advantages




Basic Info. 

Model NO. 51105  51205  51305  51405  Separated Separated
MOQ 1PCS Quality Guaranteed
Mainly Market America Europe Asia Africa Serive OEM
Stock Rich Stocks Feature High Precision, Small Torque, Low Noise
Transport Package Industrial Packing or as Per Requirement Specification 51105  51205  51305  51405
Trademark FOS Bearing or OEM Origin YANDIAN, ZheJiang
HS Code 8482200000 Production Capacity 7000PCS/Month

Product Decription

Tapered roller bearings are separable bearings, and the inner and outer rings of the bearing have tapered raceways. This type of bearing is divided into different structural types such as single row, double row and 4 row tapered roller bearings according to the number of rows of rollers installed. Single row tapered roller bearings can bear radial loads and axial loads in 1 direction. When the bearing bears radial load, an axial component force will be generated, so another bearing that can bear the axial force in the opposite direction is needed to balance it.
Product  Series

More series of Roller bearing
3 series Roller bearing

BearingNo. Dimensions (mm) Load Rating(KN) Mass
d D T B C R r C C0 kg
min min
32004 20 42 15 15 12 1 1 25.1 28.2 0.095
32005 25 47 15 15 11.5 0.6 0.6 28 34.1 0.111
32006 30 55 17 17 13 1 1.5 40 45 0.175
32007 35 62 18 18 14 1 1 43.2 59.2 0.224
32008 40 68 19 19 14.5 1 1 55 62 0.27
32009 45 75 20 20 15.5 1 1 65 76 0.34
32571 50 80 20 20 15.5 1 1 67 79 0.36
32011 55 90 23 23 17.5 1.5 1.5 80.2 117.2 0.551
32012 60 95 23 23 17.5 1.5 1.5 81.7 122.2 0.59
32013 65 100 23 23 17.5 1.5 1.5 82.8 127.3 0.63
32014 70 110 25 25 19 1.5 1.5 104.3 160.1 0.85
32015 75 115 25 25 19 1.5 1.5 103.1 160.2 0.875
32016 80 125 29 29 22 1.5 1.5 141 220 1.27
32017 85 130 29 29 22 1.5 1.5 139.8 220.3 1.32
32018 90 140 32 32 24 2 1.5 171.3 271 1.73
32019 95 145 32 32 24 2 1.5 166 202 1.88
32571 100 150 32 32 24 2 1.5 173.1 281.7 1.873
32571 105 160 35 35 26 2.5 2 205.4 335.8 2.4
32571 110 170 38 38 29 2.5 2 245.7 403.4 2.972
32571 120 180 38 38 29 2.5 2 242.1 404.4 3.18
32026 130 200 45 45 34 2.5 2 340 563 5.04
32571 140 210 45 45 34 2.5 2 346 585 5.28

Production Process
Production Process

Our Advantage

Package and shipment

Company Profile

HangZhou Siruibo Bearing Technology Co., Ltd. is a company mainly engaged in manufacturing and selling outer spherical bearings. The registered capital is Five million.

Since its establishment 20 years ago, the company is committed to Mounted Bearing Unit (maintenance-free bearings, engraving machine bearings, holding machine shaft Bearing, no-tillage machine bearing, fan bearing, high temperature bearing, zinc alloy bearing, food grade bearing unit) research and development. With the most complete varieties and best advanced manufacturing technology in production of Mounted Bearing Unit, to be a reliable enterprises, we welcome your cooperation.  Currently, our company produce 10 series of more than 260 varieties of outer spherical bearings and 13 different structural categories of outer spherical bearing special seats, all adopted  International standard design and manufacturing. Registered trademark “FOS” .

Through the efforts and unremitting pursuit of all employees of the company, all products accepted by international standards. Over the years of Expansion and technical transformation, we developed into a Mounted Bearing Unit with large scale of professional manufacturers, for the bearing industry in China, has made a contribution to the development of Bearing.

HangZhou Siruibo Bearing Technology Co., Ltd. has a production capacity of 1 million sets/year, with an annual output value of 30 million yuan. We produce 30 varieties monthly , with 45-60 days lead time.

The company has a perfect material and product quality inspection equipment, according to the strict scientific Quality assurance system,  to prove satisfactory to our customers.  Our products widely used in agricultural Industry machinery, textile machinery and light industry, chemical industry, metallurgy, printing, food, transportation, coal, packaging and other industries and the introduction of machinery .Our products have exported to Europe, America and many countries and regions in South east Asia.


About us:
We are 1 manufactuer of bearing for more than 20 years.
Give us a chance, we will cooperate with our passion.
Our professional, reliable, experienced  products and service can meet your request.
Why choose us? 

1. Samples quantity: 1-10 PCS are available. 
2. Free samples: It depends on the Model No., material and quantity. Some of the bearings samples need client to pay samples charge and shipping cost. 
3. It’s better to start your order with Trade Assurance to get full protection for your samples order. 

The customized LOGO or drawing is acceptable for us. 

1. MOQ: 10 PCS mix different standard bearings. 
2. MOQ: 3000 PCS customized your brand bearings. 

1. We can printing your brand (logo, artwork)on the shield or laser engraving your brand on the shield. 
2. We can custom your packaging according to your design
3. All copyright own by clients and we promised don’t disclose any info. 

Please visit our bearings website, we strongly encourge that you can communicate with us through email, thanks! 
We have all kinds of bearings, just tell me your item number and quantity, best price will be offered to you soon
The material of the bearings, precision rating, seals type, OEM service, etc, all of them we can make according to your requirement. 
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Rolling Body: Ball Bearings
The Number of Rows: Single
Outer Dimension: Large (200-430mm)
Material: Bearing Steel
Spherical: Non-Aligning Bearings
Load Direction: Radial Bearing
US$ 1/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

pom bearing

How does proper installation and alignment affect the performance and lifespan of POM bearings?

Proper installation and alignment play a critical role in the performance and lifespan of POM (Polyoxymethylene) bearings. The correct installation and alignment procedures ensure that the bearings operate under optimal conditions, minimizing wear, reducing friction, and extending their service life. Here is a detailed explanation of how proper installation and alignment affect the performance and lifespan of POM bearings:

1. Load Distribution:

Proper installation and alignment of POM bearings help ensure uniform load distribution across the bearing surfaces. When the bearings are correctly installed, they can effectively support and distribute the applied loads, preventing excessive stress on specific areas. This balanced load distribution reduces the risk of localized wear, fatigue, or premature failure, enhancing the overall performance and durability of the bearings.

2. Reduced Friction and Heat Generation:

Accurate installation and alignment of POM bearings help minimize friction and heat generation during operation. When the bearings are properly aligned, they can rotate smoothly without excessive friction or binding. This reduces energy losses, minimizes heat buildup, and prevents excessive wear. Proper alignment also ensures that the bearing surfaces are in optimal contact, allowing for efficient lubrication distribution and further reducing friction. Reduced friction and heat generation contribute to improved performance and extended lifespan of POM bearings.

3. Prevention of Misalignment-Related Issues:

Correct installation and alignment of POM bearings help prevent misalignment-related issues. Misalignment can occur due to improper installation practices or external factors such as vibration or thermal expansion. Misalignment can lead to uneven loading, increased friction, and accelerated wear. By following proper installation procedures and aligning the bearings accurately, the risk of misalignment-related problems such as excessive wear, noise, or premature failure is minimized, ensuring reliable and long-lasting bearing operation.

4. Protection Against Contamination:

Proper installation and alignment of POM bearings include implementing appropriate sealing mechanisms to protect against contamination. Contaminants such as dirt, dust, moisture, or chemicals can enter the bearing assembly if not properly sealed. Contamination can lead to abrasion, corrosion, or lubricant degradation, negatively impacting the bearing’s performance and lifespan. By ensuring proper installation and alignment, including the use of suitable seals or shields, the ingress of contaminants can be minimized, preserving the integrity and functionality of the POM bearings.

5. Consultation and Expertise:

When it comes to the installation and alignment of POM bearings, consulting with bearing manufacturers, industry experts, or experienced professionals is highly recommended. They can provide specific guidelines, best practices, and technical support to ensure proper installation and alignment procedures are followed. Manufacturers often provide detailed installation instructions, including torque specifications, mounting methods, or alignment techniques, tailored to their specific bearing designs. Seeking expert advice helps avoid potential installation errors and ensures that the bearings are correctly installed and aligned for optimal performance and enhanced lifespan.

By paying attention to proper installation and alignment procedures, POM bearings can operate efficiently, withstand the intended loads, minimize wear, and deliver extended service life in various industrial applications.

pom bearing

Are POM bearings known for their self-lubricating or maintenance-free qualities?

Yes, POM bearings are known for their self-lubricating qualities, which contribute to their maintenance-free characteristics. The unique properties of POM enable it to function as a self-lubricating material in bearing applications, offering several advantages:

1. Inherent Lubricity:

POM has inherent lubricity, meaning it exhibits lubricating properties without the need for additional lubricants. The molecular structure of POM allows for the formation of a thin lubricating film at the interface between the bearing and the mating surface. This lubricating film reduces friction and wear, promoting smooth operation and minimizing the need for external lubrication.

2. Reduced Friction and Wear:

The self-lubricating properties of POM contribute to reduced friction and wear in bearing applications. The formation of a lubricating film helps to separate the sliding or rolling surfaces, minimizing direct metal-to-metal contact and reducing frictional forces. This leads to lower wear rates and less material loss, resulting in extended bearing life and improved performance.

3. Longer Service Life:

POM bearings’ self-lubricating qualities contribute to their longer service life compared to bearings that require regular lubrication. The presence of a lubricating film helps to protect the bearing surfaces from excessive wear and damage, allowing the bearing to operate smoothly over an extended period. The reduced friction and wear also help to minimize the accumulation of debris and contaminants, further enhancing the bearing’s longevity.

4. Low Maintenance Requirements:

Due to their self-lubricating properties, POM bearings have low maintenance requirements. Unlike traditional bearings that rely on periodic lubrication to ensure proper operation, POM bearings can operate effectively without the need for frequent lubricant replenishment or maintenance. This characteristic is particularly beneficial in applications where regular maintenance is impractical, time-consuming, or costly.

5. Cost Savings:

The self-lubricating and maintenance-free qualities of POM bearings can result in cost savings for users. With reduced maintenance requirements, there is less need for lubrication equipment, lubricants, and labor associated with lubrication tasks. Additionally, the extended service life of POM bearings reduces the frequency of bearing replacements, leading to lower maintenance and replacement costs over time.

It’s important to note that while POM bearings are known for their self-lubricating qualities, the specific application conditions and requirements should be considered. In certain demanding or high-temperature applications, additional lubrication or alternative bearing materials may be necessary. Consulting with bearing manufacturers or industry experts can help determine the most suitable bearing solution for specific operating conditions.

pom bearing

Can you describe the load-carrying capacity and load ratings of POM bearings?

POM bearings have specific load-carrying capacities and load ratings that determine their ability to withstand different types and magnitudes of loads. The load-carrying capacity of a bearing refers to the maximum load it can support without excessive deformation or failure. Here is a detailed explanation of the load-carrying capacity and load ratings of POM bearings:

1. Static Load Capacity:

The static load capacity of a bearing refers to the maximum load it can withstand without causing permanent deformation or damage while the bearing is stationary or subjected to a slow, constant load. POM bearings have a relatively high static load capacity, allowing them to support heavy loads without significant deformation. This property makes POM bearings suitable for applications where the load is applied steadily and remains relatively constant.

2. Dynamic Load Capacity:

The dynamic load capacity of a bearing refers to the maximum load it can withstand while in motion, considering factors such as speed, duration, and impact forces. POM bearings have a lower dynamic load capacity compared to some other bearing materials, such as bronze or steel. They are more suitable for applications involving moderate to light loads and where the load is not subjected to high impact or shock forces. When the load exceeds the dynamic load capacity of a POM bearing, it may experience increased wear, deformation, or failure.

3. Load Ratings:

Bearing manufacturers typically provide load ratings for POM bearings, which indicate the maximum recommended loads for reliable and safe operation. These load ratings take into account factors such as the bearing’s geometry, material properties, lubrication, and operating conditions. The load ratings are usually specified as axial load ratings and radial load ratings.

Axial Load Rating: The axial load rating indicates the maximum load that a POM bearing can withstand in the axial direction, parallel to the bearing axis. It represents the force applied along the shaft or bore of the bearing.

Radial Load Rating: The radial load rating indicates the maximum load that a POM bearing can withstand in the radial direction, perpendicular to the bearing axis. It represents the force applied perpendicular to the shaft or bore of the bearing.

It’s important to consider the load ratings provided by the bearing manufacturer and ensure that the loads in the application fall within the specified limits. Exceeding the load ratings can result in premature wear, excessive deformation, or catastrophic failure of the POM bearings.

Additionally, it’s worth noting that the load-carrying capacity and load ratings of POM bearings can be influenced by factors such as temperature, lubrication, surface finish, and operating conditions. It’s crucial to consider these factors and consult the manufacturer’s recommendations to ensure optimal performance and longevity of POM bearings in specific applications.

China manufacturer Wholesale Bearings Plastic Cage POM Thrust Ball Bearing 51203 51204 51205 51206   wheel bearingChina manufacturer Wholesale Bearings Plastic Cage POM Thrust Ball Bearing 51203 51204 51205 51206   wheel bearing
editor by CX 2024-04-12

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