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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).

AST 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 from AST:

  • 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 AST as part of our value-added services designed to make your job easier.

Click here to go to our online catalog and product specifier for Thrust Bearings including thrust ball bearings and axial bearings. We also provide full specifications and free 3D CAD model downloads.