The 50:1 Ratio, 1. 54" Center Distance, 0.625" Input Bore (C Face), 0.625" Input Diameter, C-Face Quill Input, 0.625" Output Diameter, Hollow Bore Output, Cast Iron Single-Reduction Worm Reducer Reducer Style Standard Center Distance (In) 1.54 Input Shaft Style (Q) C Face Quilled Motor Frame Size 56C Output Shaft Style (H) Hollow Output Ratio 50: 1 Parts List Form 9126 Weight Unit of Measure: EA Weight: 23.75 Sale Qty Multiple: 1 Packaged Length: 9.25 Packaged Width: 9.25 Packaged Height: 8.75 No. Links/Ft. : 0 Reducer Style: Standard Center Distance (In): 1.54 Input Shaft Style: (Q) C Face Quilled Motor Frame Size: 56C Output Shaft Style: (H) Hollow Output Ratio: 50: 1 Parts List: Form 9126 Housing Material: Cast Iron Gear Drive Reductions: Single Nominal Output RPM @1750: 35.0 Mechanical Input HP Rating @ 1750: 0.27 Mechanical Output Torque Rating @ 1750 Input: 309 Thermal Input HP Rating @ 1750 Input: 0.27 Thermal Output Torque Rating @ 1750 Input: 309 Max OHL (Output Shaft): 388 Max Thrust Load (Output Shaft): 1399 Shaft Seal Material: Nitrile Typical