The structure of Cross Cylindrical Roller Bearing For Robot Arm Harmonic Reducer Drive CFG CSF-50 is two halves of the outer ring, which are mainly used for solid shaft reducers. The rolling elements are round oriented rollers, which are arranged vertically in the V-shaped raceway at 90° to each other. Because the inner ring or outer ring of the crossed roller bearing has a two-part structure, the bearing clearance can be adjusted, and even if preload is applied, high-precision rotational movement can be obtained. This type of structure can bear axial force, overturning moment and radial force at the same time, and has high rigidity, rotation accuracy and load bearing: this type of bearing has a compact appearance. The bearing has its own mounting hole, which is convenient for customers to install directly.