Compared with gear couplings, diaphragm couplings have no relative sliding, no lubrication, sealing, no noise, basically no maintenance, more convenient manufacturing, and can partially replace gear couplings.
The alignment principle of the gear coupling is to approximate the projection of the movable end face circle of the motor on the fixed end face as a perfect circle, because the distance from the center of the movable end to the fixed end face remains unchanged.
The elastic coupling has the performance of compensating the relative deviation of the two shafts, cushioning, shock absorption, and adapting to the general occasions. The elastic coupling is made of polyurethane plastic as the elastic element, and the working temperature is -35~+80 degrees.
Elastic sleeve pin coupling for pump: 1. The pin of the elastic sleeve pin coupling is covered with a rubber ring, which has elasticity and the ability to compensate axis displacement, but it is easy to wear when the relative angular displacement is large;