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Stainless Steel Single Row Radial Ball Bearings

Stainless Steel Single Row Radial Ball Bearings includes the popular metric series of ball bearings and we keep variants of the entire range in stock.

Stainless bearings are inner ring and outer rings are produced as standard in AISI420 (3Cr13/-GB/T1220), with cages of AISI304 (1Cr17MN6Ni5N-GB/T1220). Bearings of this material retain excellent strengths, dynamic loads are typically only 20-25% less than their Chrome Steel equivalents, and Static loads are very similar. They’re suitable for both low and high speed and low to medium temperatures*

Bearings normally come as standard with two rubber seals (normally Black or Blue), or with two stainless steel shields, both come as standard with a multipurpose aluminium complex NLGI 2 Food Grade Grease, which is suitable for food processing equipment, particularly suited to bearings.

*NBR Rubber Sealed bearings have a temperature range of -30°C to +100°C, although they can survive intermittently at temperatures up to 120°C. For those with Stainless Steel Shields, the temperature range is from -30°C to +150°C (restricted only by the grease).

Stainless radial bearings can actually operate from -70°C to +250°C (+300°C intermittently), but you would need to remove the seals and shields and use an alternative lubrication method. As stainless bearings have a much greater tolerance to heat and therefore do not thermally expand in standard bearing temperature bands, they are normally only available in a CN standard clearance.

AISI420 Stainless Steel bearings offer good corrosion resistance to fresh water and many weaker chemical environments and are by far the most popular stainless steel bearing material used and available.