Comparison of performance of various couplings

China's coupling products have formed three categories of multi-species product system, a large number of general coupling has been formulated as standards, machinery industry standards. All kinds of couplings have their own different scope of application and application, now will be standardized and high-performance patent coupling from the performance, characteristics, scope of application and application of the comparison, in order to facilitate users according to their different requirements from the selection of their own needs of the coupling

Rigid coupling: the rigid coupling does not have the ability to compensate the relative deviation of the two shafts, nor does it have the buffering and damping performance; But the structure is simple and the price is cheap. Only when the load is stable, the speed is stable, and the relative deviation of the two axes is minimal, can the rigid coupling be selected.
Coupling: the structural feature is that there is a safety link (such as pin movable connection, etc.), which can only withstand a limited load. When the actual load exceeds the load defined in advance, the insurance link changes, cutting off the transmission of motion and power, so as to protect the rest of the machine from damage, that is, the protective effect.
Starting coupling: in addition to overload protection, but also the machine motor with load starting to change into approximately no-load starting.

Flexible coupling: it has the necessary ability to compensate the relative deviation of the axis of the two shafts connected. The peak number varies with the model.
The flexible coupling of inelastic components has a large bearing capacity, but it does not have cushioning and shock absorption performance, and has impact noise at high speed or unstable speed or often positive or reverse. Suitable for low speed, heavy load and steady speed.
The flexible coupling of non-metallic elastic elements has good cushioning and damping performance when the speed is not stable. However, non-metallic (rubber, nylon, etc.) elastic elements are suitable for high speed, light load and normal temperature because of their low strength, short service life, small bearing capacity and low temperature resistance
Flexible coupling of metal elastic elements: in addition to good cushioning and shock absorption performance, large bearing capacity, suitable for speed and load change and high or low temperature occasions.