Product Description
Specification
The outer spherical ball bearing is actually a variant of the deep groove ball bearing, which is characterized in that the outer diameter outer surface of the outer ring ball is spherical, and can be fitted into the corresponding concave spherical surface of the bearing seat to serve as a centering function. The outer spherical bearing is mainly used to bear the radial and axial combined load mainly based on the radial load, and generally it is not suitable to bear the axial load alone.
This type of bearing can be fitted with inner ring (with full set of rollers and retainers) and outer ring
| Unit No. | Dimension (mm) | Bearing No. | Housing No. | Weight(kg) | |||||||||
| d | h | a | e | b | s | g | w | B | n | ||||
| UCP201 | 12 | 30.2 | 127 | 96 | 38 | 19 | 15 | 62 | 31 | 12.7 | UC201 | P201 | 0.63 |
| UCP202 | 15 | 30.2 | 127 | 96 | 38 | 19 | 15 | 62 | 31 | 12.7 | UC202 | P202 | 0.61 |
| UCP203 | 17 | 30.2 | 127 | 96 | 38 | 19 | 15 | 62 | 31 | 12.7 | UC203 | P203 | 0.59 |
| UCP204 | 20 | 33.3 | 127 | 96 | 38 | 19 | 15 | 65 | 31 | 12.7 | UC204 | P204 | 0.61 |
| UCP205 | 25 | 36.5 | 140 | 105 | 38 | 19 | 16 | 70 | 34 | 14.3 | UC205 | P205 | 0.74 |
| UCP206 | 30 | 42.9 | 165 | 121 | 48 | 21 | 18 | 83 | 38.1 | 15.9 | UC206 | P206 | 1.15 |
| UCP207 | 35 | 47.6 | 167 | 126 | 48 | 21 | 19 | 92 | 42.9 | 17.5 | UC207 | P207 | 1.4 |
| UCP208 | 40 | 49.2 | 184 | 136 | 54 | 21 | 19 | 98 | 49.2 | 19 | UC208 | P208 | 1.78 |
| UCP209 | 45 | 54 | 190 | 146 | 54 | 21 | 20 | 106 | 49.2 | 19 | UC209 | P209 | 2 |
| UCP210 | 50 | 57.2 | 206 | 159 | 60 | 25 | 22 | 112 | 51.6 | 19 | UC210 | P210 | 2.55 |
| UCP211 | 55 | 63.5 | 219 | 171 | 60 | 25 | 22 | 126 | 55.6 | 22.2 | UC211 | P211 | 3.2 |
| UCP212 | 60 | 69.8 | 241 | 184 | 70 | 25 | 25 | 137 | 65.1 | 25.4 | UC212 | P212 | 4.4 |
| UCP213 | 65 | 76.2 | 265 | 203 | 70 | 29 | 27 | 150 | 65.1 | 25.4 | UC213 | P213 | 5.1 |
| UCP214 | 70 | 79.4 | 266 | 210 | 72 | 31 | 27 | 156 | 74.6 | 30.2 | UC214 | P214 | 5.7 |
| UCP215 | 75 | 82.6 | 275 | 217 | 74 | 31 | 28 | 163 | 77.8 | 33.3 | UC215 | P215 | 6.3 |
| UCP216 | 80 | 88.9 | 292 | 232 | 78 | 31 | 30 | 175 | 82.6 | 33.3 | UC216 | P216 | 7.6 |
| UCP217 | 85 | 95.2 | 310 | 247 | 83 | 31 | 32 | 187 | 85.7 | 34.1 | UC217 | P217 | 9.2 |
| UCP218 | 90 | 101.6 | 327 | 262 | 88 | 33 | 34 | 2, 63192752 | |||||
| Fax: | |||||||||||||
| Address: | Mayan Industry Zone, Henghe Town, HangZhou, HangZhou, China | ||||||||||||
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| Contact Angle: | 0 |
|---|---|
| Aligning: | Non-Aligning Bearing |
| Separated: | Separated |
| Rows Number: | Single |
| Load Direction: | Radial Bearing |
| Material: | Cast Iron |
| Samples: |
US$ 20/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|

How long do UCP bearings last?
The lifespan of UCP bearings, also known as pillow block bearings, can vary depending on several factors. Here’s a detailed explanation of the factors that can influence the longevity of UCP bearings:
- Operating Conditions: The operating conditions play a significant role in the lifespan of UCP bearings. Factors such as the load magnitude, speed, temperature, and environmental conditions can impact the bearing’s performance and durability. Bearings operating under heavy loads, high speeds, or in harsh environments may experience increased wear and fatigue, potentially reducing their lifespan.
- Maintenance and Lubrication: Proper maintenance practices, including regular inspection, cleaning, and lubrication, can significantly extend the lifespan of UCP bearings. Adequate lubrication forms a protective film between the rolling elements and the bearing races, reducing friction and wear. Insufficient or improper lubrication can lead to increased friction, heat generation, and premature failure of the bearings.
- Quality and Material: The quality and material composition of UCP bearings can influence their lifespan. Bearings made from high-quality materials, such as stainless steel or chrome steel, are generally more resistant to wear, corrosion, and fatigue. Careful selection of UCP bearings from reputable manufacturers, considering factors like load ratings and performance specifications, can contribute to longer bearing life.
- Installation and Alignment: Proper installation and alignment of UCP bearings are critical for their longevity. Ensuring correct shaft and housing fits, accurate alignment of the bearing components, and appropriate tightening of locking mechanisms help distribute loads evenly and prevent excessive stress or misalignment. Improper installation can lead to premature wear, increased friction, and reduced bearing life.
- Application-Specific Factors: The specific application in which UCP bearings are used can influence their lifespan. Factors like shock loads, vibration, contamination, and the presence of corrosive substances can affect bearing performance and durability. Adequate protection measures, such as seals or shields, can help mitigate these factors and prolong bearing life.
Given these factors, it can be challenging to provide an exact lifespan for UCP bearings. In some applications, UCP bearings can last for many years or even decades if properly maintained and operated within their specified limits. However, in demanding or unfavorable conditions, the lifespan of UCP bearings may be shorter, requiring more frequent inspection and replacement.
It’s important to monitor the condition of UCP bearings regularly and look for signs of wear, damage, or performance degradation. Any unusual noise, excessive vibration, increased temperature, or other signs of bearing failure should be addressed promptly to avoid further damage to the bearings and the machinery they support.
Consulting the manufacturer’s documentation, maintenance guidelines, or seeking advice from bearing experts can provide more specific information regarding the expected lifespan of UCP bearings in a particular application or operating environment.

How to maintain and lubricate UCP bearings?
Proper maintenance and lubrication are essential for ensuring the optimal performance and longevity of UCP bearings, also known as pillow block bearings. Regular maintenance helps prevent premature wear, reduce friction, and minimize the risk of bearing failure. Here’s a detailed explanation of how to maintain and lubricate UCP bearings:
- Cleanliness: Keep the surrounding area clean to prevent the ingress of dirt, dust, or other contaminants that can compromise the bearing’s performance. Regularly inspect the bearing and its housing for any signs of dirt or debris and clean them using a suitable cleaning agent and a cloth.
- Lubrication: Lubrication plays a crucial role in reducing friction and preventing metal-to-metal contact within the bearing. Follow these steps for proper lubrication of UCP bearings:
- Choose the right lubricant: Select a lubricant recommended by the bearing manufacturer that suits the operating conditions and temperature range of the application. Common lubricants used for UCP bearings include grease and oil.
- Clean the bearing: Before applying fresh lubricant, clean the bearing to remove any old or contaminated lubricant. Use a suitable cleaning agent and a cloth to wipe the bearing surfaces.
- Apply lubricant: Follow the manufacturer’s guidelines to apply the lubricant to the bearing. For greased bearings, ensure that the entire cavity between the inner and outer races is filled with grease. For oil lubrication, use the appropriate oiling method, such as oil bath or oil mist, as recommended by the manufacturer.
- Reapply lubricant: Regularly monitor the lubricant level and condition. If necessary, replenish or replace the lubricant to maintain the optimal lubrication state. The frequency of lubrication depends on the operating conditions and the manufacturer’s recommendations.
- Temperature and environment: UCP bearings should operate within the recommended temperature range specified by the manufacturer. Excessive heat or extreme cold can affect the lubricant’s properties and lead to premature bearing failure. Additionally, protect the bearing from exposure to corrosive substances or excessive moisture, as these can degrade the lubricant and cause damage to the bearing surfaces.
- Regular inspections: Conduct regular inspections of the UCP bearings to identify any signs of wear, damage, or abnormal operating conditions. Look for indications such as noise, vibration, increased friction, or overheating. If any issues are detected, take corrective measures promptly, such as replacing damaged bearings or adjusting the lubrication regimen.
- Follow manufacturer guidelines: Always refer to the manufacturer’s documentation and guidelines for specific maintenance and lubrication instructions. Manufacturers often provide detailed recommendations based on their bearing designs and materials, as well as the intended applications.
By following these maintenance and lubrication practices, you can ensure the optimal performance and extend the service life of UCP bearings in your applications.
Please note that the specific maintenance and lubrication requirements may vary depending on the bearing manufacturer, design, and operating conditions. Always consult the manufacturer’s documentation and guidelines for the most accurate and detailed instructions.

What are the applications of UCP bearings?
UCP bearings, also known as pillow block bearings, find widespread applications in various industries and machinery. These bearings are designed to provide support, facilitate motion, and reduce friction. Here’s a detailed explanation of their applications:
- Conveyor Systems: UCP bearings are commonly used in conveyor systems, where they support rotating components such as rollers or pulleys. They ensure smooth and reliable motion, allowing for efficient material handling in industries like manufacturing, logistics, and mining.
- Agricultural Machinery: UCP bearings are utilized in agricultural machinery, including harvesters, tractors, and irrigation systems. They help support rotating shafts, gears, and other components, enabling proper functioning and smooth operation in demanding agricultural environments.
- Industrial Equipment: UCP bearings are extensively employed in a wide range of industrial equipment, such as pumps, fans, compressors, and motors. They provide support and facilitate rotational or linear motion, ensuring reliable and efficient operation in industrial processes.
- HVAC Systems: UCP bearings are used in heating, ventilation, and air conditioning (HVAC) systems. They support the rotating components of fans, blowers, and motors, allowing for efficient air circulation and temperature control in residential, commercial, and industrial buildings.
- Printing Machinery: UCP bearings are utilized in printing machinery, including printing presses and paper handling equipment. They enable smooth and precise motion of printing cylinders, rollers, and other components, ensuring high-quality printing results and reliable performance.
- Packaging Machinery: UCP bearings find applications in packaging machinery, such as filling machines, labeling machines, and sealing machines. They support the moving parts of these machines, allowing for accurate and consistent packaging operations in industries like food and beverage, pharmaceuticals, and consumer goods.
- Material Handling Equipment: UCP bearings are used in various material handling equipment, such as forklifts, palletizers, and conveyors. They provide support for rotating or linear motion components, enabling efficient movement, lifting, and transportation of materials in warehouses, distribution centers, and manufacturing facilities.
- Mining Equipment: UCP bearings are employed in mining equipment, including crushers, screens, and conveyor systems. They support the heavy-duty components used in mining operations, ensuring reliable performance and durability in harsh and demanding mining environments.
- Construction Machinery: UCP bearings are utilized in construction machinery, such as excavators, loaders, and cranes. They provide support for rotating and lifting components, enabling precise and smooth operation in construction sites and infrastructure projects.
- Power Transmission Systems: UCP bearings play a vital role in power transmission systems, including gearboxes, belt drives, and chain drives. They support the shafts and rotating elements, facilitating the transfer of power and motion between different parts of the system.
These are just some examples of the applications of UCP bearings. Their versatility and ability to provide reliable support and motion control make them suitable for a wide range of industries, including manufacturing, transportation, agriculture, mining, construction, and more.
In summary, UCP bearings find applications in numerous industries and machinery, contributing to the smooth and reliable operation of various systems, equipment, and processes.


editor by CX 2024-02-24