Crossed roller bearings are also called crossed roller bearings. The rolling elements generally use cylindrical rollers or tapered rollers that are arranged crosswise on the raceway. The rollers are separated by cages or isolation blocks. This kind of cross The structure of the roller arrangement allows a single bearing to withstand various loads such as axial load, radial load and overturning moment. Compared with traditional structural bearings, the rigidity is increased by 3-4 times. It is suitable for various industrial rotating parts, rotating worktables and other applications.