... reversing conditions:Specifications: Single Stage/ 65, 85, 100, 120, 150 double stage/ 1065, 1285, 1510 Ratios: Single Stage/ 9, 11, 17 ... , 23, 29, 35, 43, 59, 71 Double Stage/ 121, 187, 289, 385, 473, 595, 731, 989, 1225 ... foot and flanged installation F series Cycloidal Speed Reducer, pinwheel gear reducer