Crossed roller bearing RA series

cylindrical rollerradialaxial

Crossed roller bearings have various structures: inner ring or outer ring which is divided into two halves, and inner ring and outer ring as a whole with high rigidity. The two-half split structure is fastened together by bolts or rivets at the factory to prevent separation during the transportation and installation. Since the rollers are arranged in a cross, only one set of Cross Roller Rings can withstand loads in all directions, and the rigidity is 3 to 4 times higher than that of conventional models. At the same time, since the inner ring or outer ring of the crossed roller bearing is divided into two structures, the bearing clearance can be adjusted, and even if a preload is applied, high-precision rotational motion can be obtained. Moreover, due to its special structure, it is usually used as a joint bearing in industrial robots. As a professional cross roller bearing supplier, THB-bearings has its own cross roller bearing factory which ensures the quality of our products. We can offer you two types of cross roller bearings including crossed cylindrical roller bearings and crossed tapered roller bearings with high quality. You can click and check more details below. RA Type (with two outer semi-rings and an inner ring with super-thin wall) The outer ring of RA series has two semi-rings, and each inner ring is of one-piece design. Rings are as thin as close to the limit, so the weight of the mechanism is effectively reduced. Both the bearing seat and the side compression flange can be lightweight. The series are most suitable for the rotating joints of the hands of robots.