Feature axially aligned ball-and-raceway design that specializes in carrying pure axial loads in one or both directions. Provide high-speed capability with low friction torque and precise axial positioning. Require minimal axial installation space while maintaining high stiffness.

Common Types:
Single direction (511, 512 series); Double direction (522, 523 series); With aligning seat washers (532, 533 series); With flat washers (514, 524 series); Stainless steel variants (Suffix SS).

Typical Applications:
Automotive clutch systems, machine tool spindles, helicopter rotors, steering mechanisms, pump and compressor shafts, crane hooks, and industrial gearboxes.