51209
51200 Series Single Direction Thrust Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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51209 Bearing Product Overview & Core Advantages
The 51209 metric thrust ball bearing is engineered for high-precision axial load applications requiring exceptional reliability. Designed specifically to accommodate unidirectional thrust loads, this bearing features a robust construction with 52100 Chrome Steel rings and balls for superior durability. Its open design allows for optimal lubrication access while maintaining precise dimensional tolerances, making it ideal for applications demanding accurate axial positioning and consistent performance under heavy thrust conditions.
51209 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 51 | Thrust ball bearing series |
| 2 | Dimension series code |
| 09 | Bore diameter code (45 mm) |
| Open | No seals or shields (standard design) |
51209 Bearing Structural Features & Performance Benefits
High Load Capacity: Engineered with 52100 Chrome Steel components and precision-ground raceways, this bearing delivers exceptional axial dynamic load rating of 8775 lbf and axial static load rating of 19462 lbf, ensuring reliable performance in demanding thrust applications.
Precision Engineering: Features tight dimensional tolerances with bore diameter tolerance of -0.012mm to 0 and outside diameter tolerance of -0.015mm to 0, providing exact axial positioning and smooth operation.
Durability & Corrosion Resistance: The stainless steel cage ensures optimal ball guidance and corrosion resistance, while the hardened steel construction maintains dimensional stability across the operating temperature range of -30° to 110°C.
Optimized Performance: With a limiting speed of 5000 rpm and compact 20 mm width, this bearing offers excellent performance in space-constrained applications requiring high-speed axial load support.
51209 Bearing Typical Application Areas
- Machine tool spindles and positioning systems
- Industrial pumps and compressor assemblies
- Automotive steering systems and transmission components
- Material handling equipment and lifting mechanisms
- Precision instruments requiring axial load support
- Robotic actuators and automation systems
