众所周知,关节是一种连接两个彼此能作多向运动的零件的联接部件。它在各种机械中经常可见到,应用十分广泛。过去,关节的各零件都用金属材料制成。随着橡胶在机械工程中应用范围的扩大,出现了用橡皮和金属制成的关节,并称为橡皮金属关节。橡皮金属关节大多制成圆筒形的,应用很广,如汽车的后 It is well-known that a joint is a coupling part that connects two parts that can move in multi-directions with each other. It is often seen in a variety of machinery, is widely used. In the past, all parts of the joint were made of metal. With the expansion of the application of rubber in mechanical engineering, joints made of eraser and metal appear and are called rubber metal joints. Rubber metal joints are mostly made of cylindrical, widely used, such as the car’s back