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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| Feature: | High Precision, Small Torque, Low Noise |
|---|---|
| Mainly Market: | America Europe Asia Africa |
| MOQ: | 1PCS |
| Package: | Packing+Cartons+Pallets |
| Samples: | Free |
| Serive: | 24 Hours on Linejapan Hot Sale Good Quality Low Pr |
| Samples: |
US$ 1/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|

How do innovations and advancements in self-aligning bearing technology impact their use?
Advancements and innovations in self-aligning bearing technology have a significant impact on their use in various industries. Here’s a detailed explanation:
- Improved Performance:
Innovations in self-aligning bearing technology often result in improved performance characteristics. These advancements can include:
- Load Capacity: New bearing designs and materials can enhance the load-carrying capacity of self-aligning bearings, allowing them to withstand higher loads or operate under more demanding conditions.
- Speed Capability: Advancements in bearing manufacturing techniques and materials can increase the maximum rotational speed at which self-aligning bearings can operate effectively, enabling their use in high-speed applications.
- Friction Reduction: Innovations in bearing design, lubrication, and surface treatments contribute to reducing friction and energy losses, resulting in improved efficiency and reduced operating costs.
- Sealing and Contamination Resistance: New sealing technologies and materials can enhance the sealing performance of self-aligning bearings, providing better protection against contaminants, moisture, and harsh environmental conditions.
- Temperature and Corrosion Resistance: Advances in bearing materials and coatings enable self-aligning bearings to withstand extreme temperatures, aggressive chemicals, and corrosive environments, expanding their range of applications.
- Extended Service Life:
Innovations in self-aligning bearing technology often result in improved durability and longevity. These advancements can include:
- Materials: The development of new bearing materials, such as advanced steels, ceramics, or composites, can significantly enhance the bearing’s resistance to wear, fatigue, and surface damage, leading to extended service life.
- Lubrication: Advancements in lubrication technologies, such as the use of solid lubricants or advanced grease formulations, can provide better film formation, reduce friction, and minimize wear, thereby increasing the bearing’s operating life.
- Surface Treatments: Innovative surface treatments, such as coatings or finishes, can improve the bearing’s resistance to corrosion, wear, and fretting, contributing to longer service intervals and reduced maintenance requirements.
- Condition Monitoring: The integration of sensor technologies and data analytics in self-aligning bearings enables real-time monitoring of operating conditions, allowing for proactive maintenance and early detection of potential failures, thus maximizing the bearing’s service life.
- Application Expansion:
Advancements in self-aligning bearing technology often lead to an expansion of their application range. These advancements can include:
- New Industries: Innovations in self-aligning bearing technology can enable their use in industries or applications where they were previously not feasible. This opens up opportunities in emerging sectors, such as renewable energy, electric vehicles, robotics, or medical devices.
- Challenging Environments: Improved performance characteristics, such as enhanced sealing, temperature resistance, or contamination resistance, allow self-aligning bearings to be deployed in challenging environments, including offshore installations, high-temperature processes, or chemically aggressive applications.
- Specialized Applications: Advancements in self-aligning bearing technology can lead to the development of specialized bearing variants tailored for specific applications, such as high-speed machining, precision equipment, or demanding industrial automation systems.
Overall, innovations and advancements in self-aligning bearing technology bring about enhanced performance, extended service life, and expanded application possibilities. These advancements drive improvements in industrial productivity, reliability, and efficiency, making self-aligning bearings a valuable component in a wide range of industries and applications.

What is the impact of proper lubrication and maintenance on the performance and lifespan of self-aligning bearings?
Proper lubrication and maintenance have a significant impact on the performance and lifespan of self-aligning bearings. Here’s a detailed explanation of their importance:
- Lubrication:
Proper lubrication is crucial for self-aligning bearings as it provides a protective film between the rolling elements and raceways, reducing friction and wear. Here are the key impacts of proper lubrication:
- Reduced Friction and Wear: Adequate lubrication helps minimize friction and wear between the rolling elements and raceways. This reduces heat generation, prevents excessive wear, and extends the bearing’s lifespan.
- Optimized Load Distribution: Proper lubrication ensures that the load is distributed evenly across the bearing components. This helps prevent localized stresses and improves the overall load-carrying capacity of the bearing.
- Corrosion and Contamination Protection: Lubrication forms a protective barrier that helps prevent corrosion and protects the bearing against contaminants such as dust, dirt, and moisture. This enhances the bearing’s resistance to damage and maintains its performance in challenging environments.
- Noise and Vibration Reduction: Properly lubricated bearings exhibit reduced noise and vibration levels, contributing to smoother and quieter operation of the machinery.
- Maintenance:
Regular maintenance practices are essential for ensuring the optimal performance and lifespan of self-aligning bearings. Here are the key impacts of proper maintenance:
- Early Detection of Issues: Regular inspections and maintenance activities enable the early detection of potential problems such as misalignment, excessive wear, or lubrication issues. Timely identification of these issues allows for proactive measures to be taken, preventing further damage and minimizing downtime.
- Preservation of Alignment: Proper maintenance helps ensure the correct alignment of the bearing with its mating components. This is particularly important for self-aligning bearings, as misalignment beyond their specified limits can lead to decreased performance and premature failure.
- Lubrication Monitoring: Maintenance involves monitoring the lubrication condition, including oil or grease quality, contamination levels, and replenishment requirements. Regular lubrication checks and replenishment help maintain the optimal lubricating film and extend the bearing’s service life.
- Cleaning and Debris Removal: Maintenance activities include cleaning the bearing and its surrounding areas, removing accumulated debris, and ensuring proper sealing. This helps prevent contamination and ensures the smooth operation of the bearing.
- Replacement of Worn Components: Through maintenance, worn or damaged components can be identified and replaced, preventing further damage and maintaining the bearing’s performance. This can include replacing seals, cages, or damaged rolling elements.
Proper lubrication and maintenance practices are essential for maximizing the performance and lifespan of self-aligning bearings. They help reduce friction, prevent excessive wear, protect against corrosion and contaminants, preserve alignment, and enable early detection of potential issues. Adhering to manufacturer recommendations and industry best practices for lubrication and maintenance ensures the reliable and efficient operation of machinery and extends the service life of self-aligning bearings.

Can you describe the load-carrying capacity and load ratings of self-aligning bearings?
Self-aligning bearings are designed to carry both radial and axial loads, and their load-carrying capacity is an essential consideration for their proper selection and application. Here’s a detailed description of the load-carrying capacity and load ratings of self-aligning bearings:
- Radial Load Capacity:
The radial load capacity of a self-aligning bearing refers to its ability to carry loads that act perpendicular to the axis of rotation. It is influenced by factors such as bearing geometry, material properties, and internal design. Self-aligning bearings, particularly spherical roller bearings, are known for their high radial load-carrying capacity. This is due to their construction that includes multiple rows of robust rolling elements and optimized raceway profiles. The larger contact area between the rolling elements and raceways allows for efficient load distribution, enabling the bearing to handle substantial radial loads.
- Axial Load Capacity:
The axial load capacity of a self-aligning bearing refers to its ability to carry loads that act parallel to the axis of rotation. The axial load-carrying capacity depends on the bearing type and design, as well as the arrangement of rolling elements. Self-aligning thrust roller bearings, for example, are specifically designed to handle significant axial loads. They utilize cylindrical or tapered rolling elements arranged in a specific orientation to withstand axial forces. Self-aligning ball bearings can also carry moderate axial loads in addition to their primary radial load-carrying capacity.
- Dynamic Load Rating:
The dynamic load rating of a self-aligning bearing is a standardized value that indicates the maximum load that the bearing can sustain for a specified number of rotations or operating hours without experiencing premature fatigue failure. It is expressed in terms of the calculated dynamic equivalent radial or axial load, which takes into account the actual load distribution within the bearing. The dynamic load rating is typically provided by the manufacturer and allows engineers to compare and select bearings based on their expected performance under dynamic operating conditions.
- Static Load Rating:
The static load rating of a self-aligning bearing represents the maximum load that the bearing can sustain without permanent deformation or excessive stress when the bearing is stationary or subjected to very slow rotations. It is typically higher than the dynamic load rating. The static load rating is an important consideration for applications where the bearing may be subjected to prolonged static or slow-speed conditions, such as in machinery that operates with intermittent or intermittent rotational motion.
It is important to note that the load-carrying capacity and load ratings provided by manufacturers are based on standardized testing methods and assumptions about operating conditions. Actual load capacity can be influenced by factors such as temperature, lubrication, misalignment, and operating speed. Therefore, it is crucial to consider the specific application requirements and consult the manufacturer’s technical data and guidelines when selecting a self-aligning bearing to ensure its suitability and optimal performance.


editor by CX 2024-02-16