Thrust-aligning roller bearings, spherical roller type, as the seat raceway was spherical structure, so aligning with the performance of such axial load bearing capacity is very large, the axial load to bear at the same time can bear The axle load of not more than 55% of the radial load on Coaxiality Shaft and the deflection is not sensitive. Bearing such major hydro-electric power for the machine, vertical motor, marine propeller shaft, crane, plastic injection molding, etc. Extrusion machine.