Linear Bearings are separable type bearings, only under axial loads. Bearings bear only a one-way direction of the axial load bearing to be capable of two-way direction of the two alternating axial load. Thrust ball bearings to be in work to tight axial. They are mainly applied to the top heart lathe, automobile clutch, and slow machines. Bi-directional thrust angular contact bearings in the machine tool spindle applicable, the one-way thrust apply to screw angular contact bearing.