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Deep Groove Ball Bearings: The Versatile Performers in the Bearing Industry
author: Agnes
2024-11-21
Four Common Materials For Deep Groove Ball Bearings

Bearings are crucial in mechanical equipment, and deep groove ball bearings are among the most widely used types. They consist of an inner ring, outer ring, balls, a cage, and lubricant. The materials for these components can vary based on their function and application. Here's a simplified guide to the common materials used:
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Rings and Balls
- Typically made from high carbon chromium bearing steel.
- SUJ2 steel (JIS) is standard, similar to AISI52100 (USA), DIN100Cr6 (Germany), and BS535A99 (UK).
- For specific uses, high-speed steel for heat resistance and stainless steel for corrosion resistance are also employed.
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Cage Material
- Stamped cages are often made of mild steel, but brass and stainless steel options are available.
- Iron cages can be made from high-strength brass, carbon steel, or synthetic resin.
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Dust Covers and Seals
- Standard dust covers are made of carbon steel, with AISI-300 stainless steel as an alternative.
- Seal materials like fluorocarbon, silicone, and PTFE are used for high-temperature operations and grease compatibility.
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Lubricant
- Bearings with dust caps and seals are filled with standard grease, but different lubricants can be used based on specific requirements.
- Open deep groove ball bearings typically use standard lubricants.
This guide provides a basic understanding of the materials involved in deep groove ball bearings, helping you make informed choices for your applications.
