51201
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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51201 Bearing Product Overview & Core Advantages
The 51201 metric thrust ball bearing is engineered for high-precision axial load applications. Designed exclusively to accommodate thrust loads along a single axis, this bearing features an open design for optimal lubrication access. Manufactured from 52100 Chrome Steel for rings and balls with a Stainless Steel cage, it delivers reliable performance in demanding environments. Its compact dimensions (12mm bore, 28mm OD) make it an ideal solution for space-constrained assemblies requiring high axial dynamic load capacity (2992 lbf) and precise operation.
51201 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 51 | Indicates a thrust ball bearing series |
| 2 | Specifies the dimension series (width and outside diameter) |
| 01 | Indicates a 12 mm bore diameter (01 × 5 = 5mm, but 00=10mm, 01=12mm per standard metric bore coding) |
| Open (No Seal) | No contact seals, allowing for higher speed operation and custom lubrication options |
51201 Bearing Structural Features & Performance Benefits
Optimized Thrust Load Capacity: The bearing's design is specifically engineered to handle pure axial loads efficiently, with an axial dynamic load rating of 2992 lbf and static rating of 4680 lbf, ensuring reliable performance in thrust applications.
Precision Engineering: Featuring tight dimensional tolerances (bore: -0.008mm to 0, width: +0.02mm to -0.25mm) for precise axial positioning and smooth operation in high-accuracy assemblies.
High-Speed Capability: The stainless steel cage and open design contribute to a limiting speed of 11,000 rpm, making it suitable for high-speed thrust applications.
Material Excellence: Constructed from 52100 Chrome Steel for raceways and balls, providing excellent wear resistance and durability, while the stainless steel cage offers corrosion resistance and cage stability.
51201 Bearing Typical Application Areas
- Automotive steering systems for thrust load management
- Machine tool spindles requiring precise axial positioning
- Industrial pumps and compressors for axial load support
- Medical equipment and precision instruments
- Aerospace actuators and control mechanisms
- Robotics and automation systems for axial motion control
