The crossed roller bearing was originally designed and patented by Messinger Bearings. This style of bearing is designed to handle all combinations of radial, axial and overturning moment loads in a single, compact envelope. This versatile solution can be supplied in standard cross sections or with bolt-down, offset races for extreme slewing applications. This bearing is a good choice if a high degree of stiffness is required, however it requires rigid and precise mounting surfaces. Cross Roller Bearings can be supplied with internal or external integral gearing.