Thrust Ball Bearing 51208 Thrust ball bearings-51208 Description: *The single direction thrust ball bearing consist of a shaft washer, a housing washer and a ball and cage thrust assembly. *The bearings are separable so that mounting is simple as the washers and the ball and cage assembly can be mounted separately. *The types: Bearings with a flat seat surface on the housing washer, bearings with a sphered seat surface and bearings with a sphered housing