The CRB series is a crossed roller bearing line with a split outer ring secured by bolts to simplify assembly and enable precise internal clearance adjustment. Cylindrical rollers are arranged at 90° with spacers, handling axial, radial, and moment loads in one compact unit. Line contact provides 3× the rigidity of ball bearings. Bore sizes 30–800 mm, open and sealed (UU) options, precision up to JIS Class 0/P4. Used in robotics, rotary tables, machine tools, measuring instruments, and medical equipment.
