Knowledge Center
Mechanical Component Reference
Dimensions and specs for the mechanical components that go into machines — bearings, bushings, and the shaft and housing sizes they mate with.
Ball Bearing Sizes
20Boundary dimensions for common deep-groove ball bearings (608, 6000, 6200, 6300 series and more): bore, outside diameter, and width in millimetres, with a spec sheet per bearing. Cross-reference a bearing number to its size, or a shaft size to the bearings that fit.
O-Ring Sizes (AS568)
Decode the AS568 o-ring dash-number system: each series (the 100s digit) fixes the cross-section, from 1/16" up to 1/4". Look up which series a dash number belongs to and its exact cross-section in inches and millimetres.
Keyway Dimensions
Pick the right key and keyseat for a shaft: the standard ANSI B17.1 square key size for each shaft-diameter range, with the keyseat depth cut into the shaft. From 5/16" up to 4-1/2" shafts, in inches.