Coupling balance grade selection method

(1) The coupling selector shall select the appropriate coupling balance grade;
(2) Whether the unbalance of the coupling can meet the needs of any rotating system depends on the performance of each special connected machine, which is determined by the manufacturer of the connected machine. It is suggested that each machinery manufacturer should formulate appropriate balance grade of flexible coupling while providing its design;
(3) If the appropriate grade of coupling can not be obtained from the manufacturer, it can be used as a reference;