An aligning roller bearing is a bearing with a drum roller assembled between an inner ring with two raceways and an outer ring with spherical raceways. Aligning roller bearings have two rows of rollers, mainly bearing radial loads, but also can withstand axial loads in either direction. It has high radial load capacity, especially suitable for heavy loads or vibration loads, but cannot withstand pure axial loads. This kind of bearing outer ring raceway is spherical shape, so its aligning performance is good, can compensate for the coaxial error. Main applications: paper making machinery, reducer, railway vehicle axle, rolling mill gear box bearing seat, rolling mill roller, crusher, vibrating screen, printing machinery, woodworking machinery, all kinds of industrial reducer, vertical aligning bearing with seat.