The characteristics of the plum blossom coupling

   The plum blossom coupling is a widely used coupling, also known as the claw coupling, which is composed of two metal claw discs and an elastic body. The two metal jaws are typically 45 gauge steel, but aluminum alloys are also available for load sensitive applications.

   The plum blossom coupling is processed by machining methods such as turning, milling, and broaching, and then undergoes overall heat treatment. In order to ensure sufficient mechanical strength, there is also a claw disc on the market that is a casting, which can be produced in large quantities and eliminates processing losses. Therefore, the price is much lower than that of machining. But the performance of castings is not very good. In some important occasions, it is better not to use it. And the claws of the castings are prone to chipping (claws fall off) under high speed or high load conditions.