The 51000 Series Single Direction Thrust Ball Bearing has a Ball and Cage Assembly sandwiched between the ground ball track of the Housing Washer and the ground ball track of the Shaft Washer, contacting both rings at a 90-degree angle. These bearings are generally used in low speed applications and must be lubricated at installation with the appropriate grease or oil.
Double direction thrust ball bearings type 52000 can withstand axial thrust loads in two directions, and can limit the movement of the shaft and housing in one direction. These bearings have a separable design for easy installation, removal and bearing inspection.
Type 53000 bearings are single direction thrust bearings with spherical housing locating washers to accommodate axial loads in one direction. They must not bear any radial loads. Many components are interchangeable. The shaft washers have ground holes for an interference fit.
53000 U-Bearings are bearings with self-aligning seat washers that can be used with self-aligning seat washers to compensate for angular misalignment between the support surface in the housing and the shaft. Depending on the bearing series, spherical seat washers have the basic designation U 2, U 3 or U 4, plus two digits indicating the size (eg spherical seat washer U 320 for bearing 53320).
Double direction thrust ball bearings include a shaft washer, two seat washers and two steel ball-cage assemblies. The bearing is a separate type, and each part can be installed independently. Double direction bearings and single direction bearings use the same shaft washer, seat washer and steel ball-cage assembly.
Double direction thrust ball bearings consist of one shaft washer, two housing washers and two ball and cage thrust assemblies. The bearings are separable so that mounting is simple. The various parts can be mounted separately. The housing washers and ball and cage thrust assemblies are identical to those of the single direction bearings. Double direction thrust ball bearings can accommodate axial loads acting in both directions and can thus serve to axially locate a shaft in both directions. They must not be subjected to radial load.