folk characters in the joint, and the joint of the external ring forming methods

摘要

this invention is low, the structure can be simplified characters in the joint.;the joint of the external ring and the internal ring of the cage in order to maintain the torque transmission is to be hold at the rail groove in each of the plural form, the appearance of the old, i also.;the external ring of the groove and the internal surface of plastic processing for the completion of any additional paving work is necessary.;the results show that, the external ring is made to be low.