Product Description
Product Description
Packaging & Shipping
Company Profile
Our Advantages
FAQ
Basic Info.
| Model NO. | 22217 22316 22315 22330 22322 | 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 | 22217 22316 22315 22330 |
| Trademark | FOS Bearing or OEM | Origin | YANDIAN, ZheJiang |
| HS Code | 8482200000 | Production Capacity | 7000PCS/Month |
Product Decription
The outer spherical ball bearing is actually a variant of the deep groove ball bearing. Its characteristic is that its outer ring outer diameter surface is a spherical surface, which can be fitted into the corresponding concave spherical surface of the bearing seat to play the role of centering. The outer spherical bearing is mainly used to bear the combined radial and axial load based on the radial load, and it is generally not suitable to bear the axial load alone.
Product Series
More series of Roller bearing
2 series Roller bearing
| Bearing No. | Dimensions(mm) | Weight | ||
| d | D | T | KG | |
| 21306CA/C3W33 | 30 | 72 | 19 | 0.412 |
| 21307CA/C3W33 | 35 | 80 | 21 | 0.542 |
| 21308CA/C3W33 | 40 | 90 | 23 | 0.743 |
| 21309CA/C3W33 | 45 | 100 | 25 | 1 |
| 21310CA/C3W33 | 50 | 110 | 27 | 1.3 |
| 21311CA/C3W33 | 55 | 120 | 29 | 1.65 |
| 21312CA/C3W33 | 60 | 130 | 31 | 2.08 |
| 21313CA/C3W33 | 65 | 140 | 33 | 2.57 |
| 21314CA/C3W33 | 70 | 150 | 35 | 3.11 |
| 21315CA/C3W33 | 75 | 160 | 37 | 3.76 |
| 21316CA/C3W33 | 80 | 170 | 39 | 4.47 |
| 21322CA/C3W33 | 110 | 240 | 50 | 11.8 |
| 23571CA/C3W33 | 120 | 180 | 46 | 3.98 |
| 23026CA/C3W33 | 130 | 200 | 52 | 5.85 |
| 23571CA/C3W33 | 140 | 210 | 53 | 6.31 |
| 23030CA/C3W33 | 150 | 225 | 56 | 7.74 |
| 23032CA/C3W33 | 160 | 240 | 60 | 9.43 |
| 23034CA/C3W33 | 170 | 260 | 67 | 12.8 |
| 23036CA/C3W33 | 180 | 280 | 74 | 16.9 |
| 23038CA/C3W33 | 190 | 290 | 75 | 17.7 |
| 23040CA/C3W33 | 200 | 310 | 82 | 22.7 |
| 23044CA/C3W33 | 220 | 340 | 90 | 29.7 |
| 23048CA/C3W33 | 240 | 360 | 92 | 32.4 |
| 24571CA/C3W33 | 120 | 180 | 60 | 5.05 |
| 24026CA/C3W33 | 130 | 200 | 69 | 7.55 |
| 24571CA/C3W33 | 140 | 210 | 69 | 8.01 |
| 24030CA/C3W33 | 150 | 225 | 75 | 10.1 |
| 24032CA/C3W33 | 160 | 240 | 80 | 12.2 |
| 24034CA/C3W33 | 170 | 260 | 90 | 16.7 |
| 24036CA/C3W33 | 180 | 280 | 100 | 22.1 |
| 24038CA/C3W33 | 190 | 290 | 100 | 23 |
| 24040CA/C3W33 | 200 | 310 | 109 | 29.3 |
| 24044CA/C3W33 | 220 | 340 | 118 | 38.1 |
| 24048CA/C3W33 | 240 | 360 | 118 | 40.8 |
| Bearing No. | Dimensions(mm) | Weight | ||
| d | D | T | kg | |
| 22208CA/C3W33 | 40 | 80 | 23 | 0.54 |
| 22209CA/C3W33 | 45 | 85 | 23 | 0.58 |
| 22210CA/C3W33 | 50 | 90 | 23 | 0.62 |
| 22211CA/C3W33 | 55 | 100 | 25 | 0.84 |
| 22212CA/C3W33 | 60 | 110 | 28 | 1.2 |
| 22213CA/C3W33 | 65 | 120 | 31 | 1.6 |
| 22214CA/C3W33 | 70 | 125 | 31 | 1.7 |
| 22215CA/C3W33 | 75 | 130 | 31 | 1.8 |
| 22216CA/C3W33 | 80 | 140 | 33 | 2.2 |
| 22217CA/C3W33 | 85 | 150 | 36 | 2.7 |
| 22218CA/C3W33 | 90 | 160 | 40 | 3.28 |
| 22219CA/C3W33 | 95 | 170 | 43 | 4.1 |
| 22220CA/C3W33 | 100 | 180 | 46 | 5 |
| 22222CA/C3W33 | 110 | 200 | 53 | 7.2 |
| 22224CA/C3W33 | 120 | 215 | 58 | 8.9 |
| 22226CA/C3W33 | 130 | 230 | 64 | 11.2 |
| 22228CA/C3W33 | 140 | 250 | 68 | 14.5 |
| 22230CA/C3W33 | 150 | 270 | 73 | 18.6 |
| 22308CA/C3W33 | 40 | 90 | 33 | 1 |
| 22309CA/C3W33 | 45 | 100 | 36 | 1.38 |
| 22310CA/C3W33 | 50 | 110 | 40 | 1.85 |
| 22311CA/C3W33 | 55 | 120 | 43 | 2.35 |
| 22312CA/C3W33 | 60 | 130 | 46 | 2.95 |
| 22313CA/C3W33 | 65 | 140 | 48 | 3.55 |
| 22314CA/C3W33 | 70 | 150 | 51 | 4.4 |
| 22315CA/C3W33 | 75 | 160 | 55 | 5.25 |
| 22316CA/C3W33 | 80 | 170 | 58 | 6.39 |
| 22317CA/C3W33 | 85 | 180 | 60 | 7.25 |
| 22318CA/C3W33 | 90 | 190 | 64 | 8.6 |
| 22319CA/C3W33 | 95 | 200 | 67 | 10.1 |
| 22320CA/C3W33 | 100 | 215 | 73 | 13.4 |
| 22322CA/C3W33 | 110 | 240 | 80 | 18 |
| 22324CA/C3W33 | 120 | 260 | 86 | 22 |
| 22326CA/C3W33 | 130 | 280 | 93 | 28.5 |
| New Item | Old Item | Structure | Specifications(dxDxT)mm | Weight/kg |
| 22207 | 3507 | MB/CA/CC/EK/CK/CMW33 | 35x72x23 | 0.43 |
| 22208 | 3508 | MB/CA/CC/E/K/CK/CMW33 | 40X80X23 | 0.55 |
| 22209 | 3509 | MB/CA/CC/E/K/CK/CMW33 | 45X85X23 | 0.59 |
| 22210 | 3510 | MB/CA/CC/E/K/CK/CMW33 | 50X90X23 | 0.64 |
| 22211 | 3511 | MB/CA/CC/E/K/CK/CMW33 | 55X100X25 | 0.88 |
| 22212 | 3512 | MB/CA/CC/E/K/CK/CMW33 | 60X110X28 | 1.19 |
| 22213 | 3513 | MB/CA/CC/E/K/CK/CMW33 | 65X120X31 | 1.6 |
| 22214 | 3514 | MB/CA/CC/E/K/CK/CMW33 | 70X125X31 | 1.68 |
| 22215 | 3515 | MB/CA/CC/E/K/CK/CMW33 | 75X130X31 | 1.75 |
| 22216 | 3516 | MB/CA/CC/E/K/CK/CMW33 | 80X140X33 | 2.12 |
| 22217 | 3517 | MB/CA/CC/E/K/CK/CMW33 | 85X150X36 | 2.79 |
| 22218 | 3518 | MB/CA/CC/E/K/CK/CMW33 | 90X160X40 | 3.78 |
| 22219 | 3519 | MB/CA/CC/E/K/CK/CMW33 | 95X170X43 | 4.31 |
| 22220 | 3520 | MB/CA/CC/E/K/CK/CMW33 | 100X180X46 | 5.06 |
| 22222 | 3522 | MB/CA/CC/E/K/CK/CMW33 | 110X200X53 | 7.4 |
| 22224 | 3524 | MB/CA/CC/E/K/CK/CMW33 | 120X215X58 | 9.267 |
| 22226 | 3526 | MB/CA/CC/E/K/CK/CMW33 | 130X230X64 | 11.5 |
| 22228 | 3528 | MB/CA/CC/E/K/CK/CMW33 | 140X250X68 | 14.5 |
| 22230 | 3530 | MB/CA/CC/E/K/CK/CMW33 | 150X270X73 | 18.4 |
| 22232 | 3532 | MB/CA/CC/E/K/CK/CMW33 | 160X260X80 | 22.3 |
| 22234 | 3534 | MB/CA/CC/E/K/CK/CMW33 | 170X310X86 | 28.7 |
| 22236 | 3536 | MB/CA/CC/E/K/CK/CMW33 | 180X320X86 | 30.5 |
| 22238 | 3538 | MB/CA/CC/E/K/CK/CMW33 | 190X320X92 | 35.55 |
| 22240 | 3540 | MB/CA/CC/E/K/CK/CMW33 | 200X360X98 | 44.7 |
| 22244 | 3544 | MB/CA/CC/E/K/CK/CMW33 | 220X400X108 | 63 |
| 22248 | 3548 | MB/CA/CC/E/K/CK/CMW33 | 240X440X120 | 83.2 |
| 22252 | 3552 | MB/CA/CC/E/K/CK/CMW33 | 260X480X130 | 105 |
| 22256 | 3556 | MB/CA/CC/E/K/CK/CMW33 | 280X500X130 | 126 |
| 22260 | 3560 | MB/CA/CC/E/K/CK/CMW33 | 300X540X140 | 143 |
| 22306 | 3606 | MB/CA/CC/E/K/CK/CMW33 | 30x70x22 | 0.37 |
| 22307 | 3607 | MB/CA/CC/E/K/CK/CMW33 | 35x80x31 | 0.75 |
| 22308 | 3608 | MB/CA/CC/E/K/CK/CMW33 | 40x90x33 | 1.07 |
| 22309 | 3609 | MB/CA/CC/E/K/CK/CMW33 | 45x90x33 | 1.4 |
| 22310 | 3610 | MB/CA/CC/E/K/CK/CMW33 | 50x110x40 | 1.83 |
| 22311 | 3611 | MB/CA/CC/E/K/CK/CMW33 | 55x120x43 | 2.4 |
| 22312 | 3612 | MB/CA/CC/E/K/CK/CMW33 | 60x130x46 | 2.88 |
| 22313 | 3613 | MB/CA/CC/E/K/CK/CMW33 | 65x140x48 | 3.52 |
| 22314 | 3614 | MB/CA/CC/E/K/CK/CMW33 | 70x150x51 | 4.21 |
| 22315 | 3615 | MB/CA/CC/E/K/CK/CMW33 | 75x160x55 | 5.47 |
| 22316 | 3616 | MB/CA/CC/E/K/CK/CMW33 | 80x170x58 | 6.19 |
| 22317 | 3617 | MB/CA/CC/E/K/CK/CMW33 | 85x180x60 | 7.5 |
| 22318 | 3618 | MB/CA/CC/E/K/CK/CMW33 | 90x190x64 | 8.96 |
| 22319 | 3619 | MB/CA/CC/E/K/CK/CMW33 | 95x200x67 | 9.93 |
| 22320 | 3620 | MB/CA/CC/E/K/CK/CMW33 | 100x215x73 | 13 |
| 22322 | 3622 | MB/CA/CC/E/K/CK/CMW33 | 110x240x80 | 17.95 |
| 22324 | 3624 | MB/CA/CC/E/K/CK/CMW33 | 120x246x80 | 22.4 |
| 22326 | 3626 | MB/CA/CC/E/K/CK/CMW33 | 130x280x93 | 28.2 |
| 22328 | 3628 | MB/CA/CC/E/K/CK/CMW33 | 140x300x102 | 35.12 |
| 22330 | 3630 | MB/CA/CC/E/K/CK/CMW33 | 150x320x108 | 43.7 |
| 22332 | 3632 | MB/CA/CC/E/K/CK/CMW33 | 160x340x114 | 52.2 |
| 22334 | 3634 | MB/CA/CC/E/K/CK/CMW33 | 170x360x120 | 60.7 |
Production Process
Production Process
Inspection
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.
Exhibitions
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?
SAMPLES
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.
CUSTOMIZED
The customized LOGO or drawing is acceptable for us.
MOQ
1. MOQ: 10 PCS mix different standard bearings.
2. MOQ: 3000 PCS customized your brand bearings.
OEM POLICY
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.
SUPORT
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: | Roller Bearings |
|---|---|
| The Number of Rows: | Single |
| Outer Dimension: | Large (200-430mm) |
| Material: | Bearing Steel |
| Spherical: | Non-Aligning Bearings |
| Load Direction: | Radial Bearing |
| Samples: |
US$ 1/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|

What are the benefits of using self-lubricating or maintenance-free track bearings?
Using self-lubricating or maintenance-free track bearings can offer several significant benefits in terms of convenience, performance, and cost-effectiveness. Let’s explore the advantages of utilizing self-lubricating or maintenance-free track bearings:
- Elimination of External Lubrication: One of the primary advantages of self-lubricating or maintenance-free track bearings is that they eliminate the need for external lubrication. These bearings are pre-lubricated with a solid lubricant or have a built-in lubrication system that provides a continuous supply of lubrication to the bearing surfaces. This eliminates the requirement for manual lubrication or periodic re-lubrication, saving time and effort in maintenance tasks.
- Extended Service Life: Self-lubricating or maintenance-free track bearings are designed to provide long service life. The presence of a solid lubricant or a self-lubricating material within the bearing helps reduce friction, wear, and the risk of surface damage. This results in improved durability and extended service life, reducing the frequency of bearing replacements and downtime for maintenance.
- Reduced Contamination and Cleanliness: External lubricants, such as grease or oil, can attract and accumulate contaminants, such as dust, dirt, or debris. In contrast, self-lubricating or maintenance-free track bearings minimize the risk of contamination since they do not require additional lubricants. This helps maintain a cleaner operating environment and reduces the potential for bearing failure due to contamination-related issues.
- Improved Reliability and Performance: Self-lubricating or maintenance-free track bearings offer consistent and reliable performance throughout their service life. The presence of an effective lubrication system ensures proper lubrication even under demanding operating conditions, such as high temperatures or high loads. This contributes to smoother and more predictable motion, reduced friction, and enhanced overall performance of the machinery or equipment.
- Cost Savings: While self-lubricating or maintenance-free track bearings may have a higher initial cost compared to standard bearings, they can result in cost savings over the long term. The elimination of manual lubrication and the extended service life of these bearings reduce maintenance requirements, labor costs, and the need for lubrication supplies. Additionally, the increased reliability and performance can minimize downtime and associated production losses.
- Ease of Installation: Self-lubricating or maintenance-free track bearings are typically designed for easy installation. They often come pre-assembled, pre-lubricated, or with integral lubrication systems, simplifying the installation process. This can save time and effort during initial setup or replacement of bearings in machinery or equipment.
Overall, self-lubricating or maintenance-free track bearings offer the advantages of reduced maintenance, extended service life, improved reliability, and cost savings. These bearings are particularly beneficial in applications where regular lubrication is challenging, time-consuming, or not feasible, or in environments where contamination control is critical.

What innovations or advancements have been made in track bearing technology?
Track bearing technology has seen several innovations and advancements over the years, driven by the need for improved performance, increased reliability, and enhanced functionality. Here are some notable innovations in track bearing technology:
- Advanced Materials: The development of new materials has significantly improved the performance and longevity of track bearings. Materials such as ceramic, hybrid ceramics, and high-performance steels offer enhanced strength, corrosion resistance, and temperature stability, making them suitable for demanding applications.
- Improved Sealing Solutions: Sealing technology has advanced to provide better protection against contaminants, moisture, and other environmental factors. Innovative seal designs and materials, including labyrinth seals, triple lip seals, and specialized coatings, help keep track bearings clean and extend their service life.
- Enhanced Lubrication: Lubrication plays a crucial role in the performance and lifespan of track bearings. Advancements in lubrication technology, such as the development of high-performance greases and solid lubricants, have improved the efficiency, reliability, and maintenance requirements of track bearings.
- Integrated Sensor Systems: Track bearings can now incorporate integrated sensor systems to monitor various parameters such as temperature, vibration, and load. These sensors provide real-time data on bearing health and performance, enabling predictive maintenance strategies and early detection of potential issues.
- Smart Bearing Technology: Smart bearing technology combines sensor systems with advanced data analytics and connectivity capabilities. These bearings can communicate wirelessly with monitoring systems, enabling remote monitoring, condition-based maintenance, and optimization of operational parameters for improved performance and efficiency.
- Design Optimization: Computer-aided design (CAD) and finite element analysis (FEA) tools have revolutionized the design process for track bearings. These tools allow for precise modeling, simulation, and optimization of bearing geometries, materials, and load capacities, resulting in improved performance, reduced weight, and enhanced reliability.
- Application-Specific Customization: With advancements in manufacturing processes, track bearings can now be customized to meet the specific requirements of different applications. Manufacturers can tailor bearing designs, materials, and coatings to optimize performance, reliability, and compatibility with unique operating conditions.
These innovations and advancements in track bearing technology have collectively contributed to improved performance, extended service life, and enhanced functionality in a wide range of industries and applications. They continue to drive progress in the field, enabling track bearings to meet the evolving demands of modern industrial systems.

What are track bearings, and how are they used in various applications?
Track bearings, also known as track rollers or track follower bearings, are specialized rolling bearings designed to operate in track-based systems. They are used in various applications that require guided linear or rotational motion. Let’s explore in detail the characteristics of track bearings and their common applications:
- Design and Construction: Track bearings typically consist of an outer ring, an inner ring, a set of rolling elements (such as rollers or needles), and a cage that holds the rolling elements together. The outer ring features a track or guide surface, while the inner ring is mounted on a shaft or stud. The rolling elements facilitate smooth rolling motion along the track, allowing for linear or rotational movement.
- Guided Motion: Track bearings are primarily used to provide guided motion in applications where components need to move along a defined path or track. The outer ring’s track surface interfaces with the track or guide rail, ensuring precise and controlled motion. This guided motion is crucial in various applications such as material handling systems, conveyors, cam mechanisms, and automated machinery.
- Load Support: Track bearings are designed to support and distribute loads, both radial and axial, in track-based systems. They can handle substantial loads while maintaining smooth motion and minimizing friction. The load-carrying capacity of track bearings makes them suitable for applications involving heavy loads, such as construction equipment, agricultural machinery, and industrial automation systems.
- Multiple Types: Track bearings come in various types to suit different application requirements. Some common types include yoke type track rollers, stud type track rollers, and cam followers. Yoke type track rollers have thick outer rings and can withstand high radial loads. Stud type track rollers have a stud instead of an inner ring and are suitable for applications with limited space. Cam followers have a stud with a built-in roller and are commonly used in cam-driven systems.
- Sealing and Contamination Protection: In many applications, track bearings are exposed to harsh environments and contaminants. To ensure reliable operation, track bearings often incorporate sealing arrangements or protective coatings. These features help prevent the ingress of dust, dirt, moisture, or other contaminants, prolonging the bearing’s service life and reducing the risk of premature failure.
- Various Applications: Track bearings find applications in a wide range of industries and systems. Some common applications include:
- Material Handling Systems: Track bearings are used in conveyors, roller tracks, and overhead cranes to facilitate smooth and guided movement of materials.
- Automated Machinery: Track bearings are employed in automated machines and robotic systems for precise motion control and positioning.
- Cam Mechanisms: Track bearings are utilized in cam-driven systems, where they follow the profile of the cam and translate the rotary motion into linear or oscillating motion.
- Construction Equipment: Track bearings are found in construction machinery, such as excavators, bulldozers, and compactors, to support the tracks or guide wheels.
- Agricultural Machinery: Track bearings are used in agricultural equipment, including tractors, combines, and harvesters, to support the tracks or guide wheels and provide reliable movement.
- Printing and Packaging Machinery: Track bearings are employed in printing presses, packaging machines, and labeling systems to ensure precise and guided movement of the printing heads, packaging materials, or labels.
In summary, track bearings are specialized rolling bearings designed for guided linear or rotational motion along a track or guide rail. They provide precise motion control, support substantial loads, and find applications in various industries such as material handling, automation, construction, agriculture, printing, and packaging. With their ability to facilitate guided motion and handle significant loads, track bearings contribute to the smooth and reliable operation of track-based systems in a wide range of applications.


editor by CX 2024-02-14