52220
Double Direction Thrust Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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52220 Bearing Product Overview & Core Advantages
The 52220 metric thrust ball bearing is engineered for demanding applications requiring high-precision axial load support. As a single-direction thrust ball bearing, it is specifically designed to accommodate heavy axial loads in one direction while operating at moderate speeds. Its construction from high-grade Chrome Steel ensures exceptional durability and long service life, making it a reliable component for high-load, high-reliability scenarios. The open seal design facilitates relubrication and is suitable for clean operating environments.
52220 Bearing Model Code Explained, Specifications & Naming Convention
The model number 52220 follows a standard industry designation for metric thrust ball bearings. The key specifications are defined by its physical dimensions and material composition, as detailed below:
- 52: Indicates a thrust ball bearing series with a flat housing washer and shaft washer.
- 220: Specifies the bore diameter code, corresponding to a 85 mm bore diameter.
- Open: Denotes the seal type, meaning the bearing is supplied without seals or shields, allowing for higher speed capability and potential relubrication.
- Material Codes: Implicitly defined by the specification, indicating Chrome Steel for rings and balls, and Stainless Steel for the cage.
52220 Bearing Structural Features & Performance Benefits
The 52220 bearing's performance is a direct result of its robust design and material selection:
- High Axial Load Capacity: The bearing is optimized to handle significant axial dynamic load ratings of 26775 lbf and axial static load ratings of 73125 lbf, providing robust support for heavy thrust applications.
- Precision Ground Components: Manufactured with tight tolerances on the bore, outside diameter, and width, ensuring precise fitment and reliable performance in precision assemblies.
- Stainless Steel Cage: The use of a stainless steel cage provides excellent corrosion resistance and strength, contributing to the bearing's stability and longevity, especially at the limiting speed of 1,800 rpm.
- Wide Operating Temperature Range: Capable of operating in temperatures from -30°C to 110°C, making it suitable for a variety of industrial environments.
52220 Bearing Typical Application Areas
The 52220 thrust ball bearing is ideal for machinery and equipment where substantial axial loads are present. Common applications include:
- Heavy-Duty Industrial Gearboxes
- Vertical Pumps and Compressors
- Cranes and Hoisting Equipment
- Machine Tool Tables and other precision positioning systems
- Marine Propulsion Systems
