Tapered roller bearings are designed so the tapered vertex of the raceway surfaces of the inner and outer rings and rollers converge at on point on the centerline of the bearing.

Due to this design feature, rollers move along the center of compound force of the inner and outer raceway, surfaces inner ring. Their cups are seperable for easy assembling. During mounting and using, radial clearance and axial clearance can be adjusted and preloaded mounting can be made.