51408 Thrust Ball Bearing | Single Direction Axial Load

The 51408 is a thrust ball bearing from the 514 series, designed with a 40 mm bore diameter to support axial loads in a single direction. Thrust ball bearings use ball rolling elements between grooved raceways to accommodate high-speed operation under purely axial loading conditions.

Common applications for this bearing type include machine tool spindles, automotive transmissions, gearboxes, and vertical pump assemblies where space is limited and axial forces must be supported with minimal friction. These bearings are not designed to carry radial loads and must be used in conjunction with radial bearings in most rotating equipment.