209
With Filling Slots Deep Groove Bearings
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Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
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209 Bearing Product Overview & Core Advantages
The 209 metric ball bearing is a high-performance single row deep groove ball bearing designed for robust radial load applications. Engineered with precision Chrome Steel rings and balls, it delivers reliable operation and long service life. Its open design allows for versatile lubrication options and facilitates high-speed operation, making it an ideal component for demanding industrial machinery where consistent performance under radial stress is critical.
209 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Interpretation | Technical Significance |
|---|---|---|
| 209 | Standard Metric Bearing Designation | Defines the core bearing dimensions: 45mm bore, 85mm OD, 19mm width. |
| Seal Type: Open | No Contact Seals | Enables higher limiting speeds and allows for custom lubrication regimes. Requires a clean operating environment. |
| Cage: Nylon | Polyamide Cage (Implied) | Reduces friction, allows for quieter operation and is suitable for high-speed applications. |
| Tolerance: P0 | Normal Tolerance Class | Standard grade for general industrial applications, ensuring reliable performance and interchangeability. |
| Clearance: CN | Normal Radial Internal Clearance | Standard clearance suitable for most operating conditions and fits. |
209 Bearing Structural Features & Performance Benefits
The 209 bearing's performance is derived from its optimized single row deep groove construction. The raceways are meticulously ground to facilitate smooth rolling motion and effective radial load distribution. The use of a Nylon cage is a key feature, offering excellent strength-to-weight ratio, inherent lubricity, and guidance for the balls, which collectively contribute to lower operational noise and a high limiting speed of 8,500 rpm. Manufactured from high-grade Chrome Steel, the bearing provides high hardness and wear resistance, supporting its substantial dynamic load rating of 7913 lbf and static load rating of 6744 lbf. The open design, while requiring a clean environment, minimizes friction torque and allows for the application of specialized lubricants to further extend service life in challenging conditions.
209 Bearing Typical Application Areas
- Electric Motors and Generators
- Industrial Gearboxes and Power Transmission Systems
- Material Handling Equipment (Conveyors, Pulleys)
- Agricultural Machinery
- General Industrial Machinery where robust radial load capacity is required
