Three Tips on Selecting Miniature Thrust Bearings


Thrust bearing are a type of rotary bearing that permits rotation between parts and is designed to support a high axial load while doing so (parallel to the shaft).

We specializes in miniature thrust bearings and small thrust bearings. Our ball thrust bearing metric series start with bores as small as 2.0 mm with flat raceways and 3.0 mm with grooved raceways with outside diameters of 6.0 mm and 8.0 mm respectively.

Some important factors when selecting thrust bearings:

  • Thrust bearings must be kept in matched sets.
  • The bore (d dimensions) of one washer (smaller) in the set will conform to the specifications.
  • The bore (d dimension) of the mating washer will be ~ .007” larger because it is a clearance hole for the shaft.

If you need help in selecting the best thrust ball bearing, thrust roller bearing, or small thrust bearing for your particular application, please remember that design engineering and application assistance are available from us as part of our value-added services designed to make your job easier.

AST Bearing

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