What are the types of couplings?

Rigid coupling does not have the ability to buffer and compensate the relative displacement of two axes, the two shafts are required to be strictly aligned, but this kind of coupling has the advantages of simple structure, low manufacturing cost, assembly and disassembly, convenient maintenance, can ensure that the two shafts have a high neutral, large transfer torque, widely used. Flange coupling, sleeve coupling and clamp coupling are commonly used.

Flexible coupling can also be divided into non-elastic flexible coupling and flexible coupling with elastic components, the former type only has the ability to compensate the relative displacement of two axes, but can not buffer vibration reduction, common slider coupling, gear coupling, universal coupling and chain coupling; The latter type contains elastic components, in addition to the ability to compensate the relative displacement of the two axes, but also has a buffer and damping, but the transmitted torque is limited by the strength of elastic components, generally less than the flexible coupling of inelastic components, Common with elastic sleeve pin coupling, elastic pin coupling, plum coupling, tire coupling, snake spring coupling and spring coupling, etc.