211
With Filling Slots Deep Groove Bearings
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Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
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211 Bearing Product Overview & Core Advantages
The 211 metric ball bearing is a single row deep groove ball bearing designed for high-performance applications requiring reliable radial load capacity. Manufactured with precision P0 tolerance class and standard CN radial internal clearance, it delivers consistent operation and long service life. Its open design allows for versatile lubrication options, while the robust construction using chrome steel rings and balls with a nylon cage ensures smooth operation and high durability, making it an ideal choice for general industrial machinery.
211 Bearing Model Code Explained, Specifications & Naming Convention
| Component | Designation | Technical Significance |
|---|---|---|
| Basic Model | 211 | Standard metric series, single row deep groove ball bearing. |
| Seal Type | Open | No integral seals or shields, allowing for high-speed operation and custom lubrication. |
| Cage Material | Nylon | Lightweight polymer cage contributing to lower friction, quieter operation, and higher limiting speed. |
| Tolerance Class | P0 (Normal) | Standard industrial grade precision for reliable performance in most applications. |
| Radial Internal Clearance | CN (Normal) | Standard internal clearance suitable for most operating conditions and fits. |
211 Bearing Structural Features & Performance Benefits
- Optimized Load Capacity: The single row deep groove construction is engineered to support significant radial dynamic load rating of 10881 lbf and a radial static load rating of 9892 lbf, providing robust performance under demanding conditions.
- High-Speed Capability: The combination of an open design and a lightweight nylon cage enables a high limiting speed of 7,000 rpm, making it suitable for applications requiring rapid rotation.
- Precision Engineering: Manufactured to P0 tolerance class with tight dimensional control on the bore diameter (55 mm), outside diameter (100 mm), and width (21 mm), ensuring consistent fit and reliable operation.
- Material Durability: Components made from high-grade chrome steel offer excellent resistance to wear and fatigue, extending the bearing's operational lifespan.
- Versatile Lubrication: The open seal type allows for the application of various greases or oils, enabling optimization for specific temperature ranges (-30°C to 120°C) and operational environments.
211 Bearing Typical Application Areas
This versatile ball bearing is widely used across numerous industries due to its reliable performance and standard dimensions. Key applications include:
- Electric Motors and Generators
- Industrial Gearboxes and Transmissions
- Material Handling Equipment (Conveyors, Pulleys)
- Agricultural Machinery
- General Industrial Machinery and Shaft Support
