51306
51300 & 51400 Series Heavy Duty Thrust Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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51306 Bearing Product Overview & Core Advantages
The 51306 metric thrust ball bearing is engineered for applications requiring high-precision axial load support. As a dedicated thrust bearing, it is specifically designed to accommodate heavy axial dynamic loads and axial static loads in a single direction. Its construction from 52100 Chrome Steel for both rings and balls ensures high durability and wear resistance, making it a reliable component for demanding industrial environments. The open design allows for high-speed operation, while the precise dimensional tolerances guarantee consistent performance and ease of integration into high-precision assemblies.
51306 Bearing Model Code Explained, Specifications & Naming Convention
The model number 51306 follows a standard metric thrust ball bearing designation. A breakdown of its key characteristics is provided below:
| Code Segment | Technical Meaning |
|---|---|
| 51 | Indicates a thrust ball bearing series. |
| 306 | Specifies the bearing dimensions: 30mm bore diameter, 60mm outside diameter, and a specific width. |
| (No Suffix) | The absence of a suffix denotes an open seal type, optimized for high-speed applications and allowing for external re-lubrication if necessary. |
51306 Bearing Structural Features & Performance Benefits
The 51306's performance is derived from its specific structural design:
- High Axial Load Capacity: The bearing is designed to handle significant axial dynamic load ratings of 8055 lbf and axial static load ratings of 14738 lbf, making it suitable for applications with substantial thrust forces.
- High-Speed Capability: The open design and the use of a stainless steel cage minimize friction and allow for a high limiting speed of 5,300 rpm.
- Precision and Rigidity: Manufactured with tight bore diameter tolerance and outside diameter tolerance, this bearing ensures precise shaft and housing fits, contributing to overall system rigidity and accuracy.
- Durability and Compliance: Constructed from high-grade 52100 Chrome Steel and compliant with ROHS and REACH standards, it offers long service life and meets modern environmental regulations.
51306 Bearing Typical Application Areas
The 51306 thrust ball bearing is ideally suited for machinery and systems where high axial loads are present. Common applications include:
- Automotive Components: Thrust assemblies in transmissions and steering systems.
- Industrial Machinery: Heavy-duty thrust loads in machine tools, presses, and gearboxes.
- Pumps and Compressors: Supporting axial forces in rotating shafts.
- Precision Equipment: Applications requiring controlled axial positioning and high-speed operation.
