Tapered Roller Bearings major radial load to bear the main trail, a joint axial load. The axial bearing capacity depends on the Outer Ring Road Roller angle, angle, the greater the axial greater carrying capacity. Bearing such an isolated type bearings. According to rolling out in the body is divided into single, double, four Tapered Bearings. Separate Tapered Roller Bearings can only unidirectional axial, it required the use of two used together four double-bearings can accommodate both axial loads to limit the axial displacement of the axis. Such bearings allowed axis tilt in front cover, otherwise, would bearings early breakage. Cone separate axial clearance required users to adjust their own double and four bearing axial clearance at the factory have been identified, users do not need to adjust. Four Tapered Roller Bearings and outside the ring assembly sequence disorder not otherwise affect the factory before the clearance, which has led to fragmentation and adopt bearing axis.