After installing the rollers and clearance cage, the separable inner ring (or outer ring) will be fixed with the shaft washer. In order to prevent the separation, the installation of the shaft washer should be simple. The clearance cage enables the friction between rollers to be disappeared and prevent rollers from falling down on one side, which is able to obtain a stable torque. The rollers are orthogonal arranged, so only one set of the Crossed Roller Bearings can withstand the loads from different directions. Compared with the traditional series bearing, the current series bearings have increased the level of rigidity by three to four times.