52308
Double Direction Thrust Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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52308 Bearing Product Overview & Core Advantages
The 52308 is a metric thrust ball bearing engineered for demanding applications requiring high axial load capacity and precision. This thrust bearing is designed to accommodate heavy axial dynamic and static loads in a single direction, making it ideal for high-reliability scenarios. Its construction from high-grade chrome steel and a stainless steel cage ensures durability and consistent performance within a specified temperature range. The open seal type allows for easy re-lubrication and maintenance, contributing to its long service life.
52308 Bearing Model Code Explained, Specifications & Naming Convention
The model number 52308 follows a standard designation system for metric thrust ball bearings. Below is a breakdown of its key components:
| Code Segment | Interpretation | Technical Significance |
|---|---|---|
| 5 | Bearing Series | Indicates a thrust ball bearing. |
| 2 | Dimension Series | Specifies the width and outside diameter series. |
| 308 | Bore Diameter Code | Denotes a bore diameter of 40 mm (derived from 5 x 308 = 1540, indicating a 40mm bore in the standard metric system). |
| (No Suffix) | Standard Design | Indicates an open (unsealed) bearing with standard tolerances and clearances. |
52308 Bearing Structural Features & Performance Benefits
The 52308 thrust ball bearing is characterized by several key structural features that deliver distinct performance advantages:
- High Axial Load Capacity: The bearing's geometry and use of chrome steel components enable it to support significant axial dynamic load ratings of 13905 lbf and axial static load ratings of 27450 lbf, making it suitable for heavy-duty thrust applications.
- Precision Ground Washers: The shaft and housing washers are precision-ground to tight tolerances (bore diameter tolerance: -0.01mm to 0), ensuring accurate shaft positioning and smooth operation.
- Stainless Steel Cage: The cage, manufactured from stainless steel, provides high strength and corrosion resistance, contributing to the bearing's stability and longevity at the limiting speed of 3000 rpm.
- Optimized Chamfer Design: With a housing washer chamfer of 1 mm and a shaft washer chamfer of 0.6 mm, the bearing facilitates easier installation and minimizes stress concentrations.
52308 Bearing Typical Application Areas
The 52308 is designed for machinery and systems where high unidirectional axial loads are present. Its robust construction and precision make it suitable for a wide range of industrial applications, including:
- Heavy-Duty Thrust Applications: Such as vertical pumps, industrial compressors, and crane hooks.
- Power Transmission Systems: Including worm gearboxes and steering columns.
- General Industrial Machinery: Used in presses, injection molding machines, and other equipment requiring reliable axial support.
