... ,CE and CCC certifications WPWDA worm and worm gear speed reducer's Features: 1.widely used in turbines, shaft liners and ... bending stress of hanging shaft.1.5 While assembling motor of WPD reducer, it is necessary that proper amount of butter applies ... of usage2.1 Before using,please check carefully whether the reducer modle, distance, ratio, input connecting method , output shaft structure, input ...