... . ISO9001,CE and CCC certifications WPWDA worm and worm gear speed reducer's Features: 1.widely used in turbines, shaft liners ... is required.2.notice of usage2.1 Before using,please check carefully whether the reducer modle, distance, ratio, input connecting method ... temperature no more goes up, please let reducer continue running).speed of input shaft:1500r/min Input(kw)Size Ratio 10 ...