Single Direction Thrust Bearing

This 51209 bearing is a Single direction thrust bearing with a flat housing locating washer. The bearing's dimensions are 45x73x20.51209 Ball Thrust, Single Direction, Metric, Extra Light45mm - Bore SizeSteel Cage

This 53209 bearing is a Single direction thrust bearing with a spherical housing locating washer. The bearing's dimensions are 45x73x20.53209 Ball Thrust, Single Direction, With Aligning Seat, Metric, Medium45mm - Bore SizeSteel Cage