Couplings belong to the category of general mechanical parts and are used to connect two shafts (active shaft and driven shaft) in different mechanisms to make them rotate together to transmit torque.In high-speed and heavy-load power transmission, some couplings also have the function of buffering, damping and improving the dynamic performance of the shafting.The coupling is composed of two halves, which are respectively connected with the driving shaft and the driven shaft.The general power machine is mostly connected with the working machine by means of a coupling, which is a commonly used connection part for the shaft transmission of mechanical products.

　　Axial offset: If the shaft extension or flexibility of a certain machine is long, it is more sensitive to the unbalanced state of the coupling.The relationship between the bearing load caused by the weight of the coupling and the total bearing load: if a machine uses light-loaded bearings or the bearing load is basically caused by the cantilever load of the coupling, the unbalanced state of the coupling More sensitive, mechanical devices with cantilever rotors or cantilever loads are usually more sensitive to the unbalanced state of the coupling.Rigidity of bearing, bearing seat and base: For rotating parts, the mechanical transmission system has a flexible base or bracket, which is more sensitive to the unbalanced state of the coupling.

　　Whether the unbalance of the coupling can meet the needs of any type of rotating system depends on the performance of each particular connected machine, and is better determined by the manufacturer of the connected machine.It is recommended that each machine manufacturer, while providing its equipment, also draw up appropriate flexible coupling balances, etc. If the appropriate coupling cannot be obtained from the machine manufacturer, etc.

　　Before choosing a coupling, you should consider your own location and environment based on the site, and then accurately calculate the torque used, and compare the data to choose the appropriate one.Otherwise, time will be wasted and money will be wasted.