QBL

This 51308 bearing is a Single direction thrust bearing with a flat housing locating washer. The bearing's dimensions are 40x78x26.51308Single Direction Thrust BearingBore Size - 40mm

This 52210 bearing is a Double direction thrust bearing with a flat housing locating washer. The bearing's dimensions are 40x78x39.52210Double Direction Thrust BearingBore Size - 40mm

This 53308 bearing is a Single direction thrust bearing with a spherical housing locating washer. The bearing's dimensions are 40x78x31.53308Single Direction Thrust Bearing with Sphered Housing WasherBore Size - 40mm