Standard Cast Aluminum C-Face Speed Reducer, Single Output, 712 lb Overhung Load/ DESIGN TYPE: MULTIPLE REDUCTION GEAR TYPE: HELICAL AND SPUR TOTAL RATIO: 31:1 LUBRICATION SYSTEM: OIL BATH INPUT SHAFT TYPE: KEYWAY INPUT SHAFT QUANTITY: 1 OUTPUT SHAFT TYPE: KEYWAY OUTPUT SHAFT QUANTITY: 1 SHAFT POSITION: IN LINE; MUST BE HORIZONTAL PART NAME ASSIGNED BY CONTROLLING AGENCY: SPEED REDUCER SPECIAL FEATURES: NOMINAL OUTPUT 55 RPM; TORQUE CAPACITY VARIES W/HP; OVERALL DIMENSION 9 3/16 IN. INCL. MOTOR FLANGE AND OUTPUT SHAFT; 2 PIECE DIE CAST ALUMINUM HOUSING WITH HARDENED STEEL GEARS; DESIGNED FOR DIRECT DRIVE W/NEMA 56C FACE, 1800 RPM (MAX) MOTOR, PURCHASED SEPARATELY.