A B Bearings: Ball/Needle , Bore Dia.: 5/8" , Duty: Continuous , Finish: Gloss Black Powder Coated , Frame: 56C , Gear Material: Steel , Gear Type: Helical/Spur , Housing Material: Die Cast Aluminum , Input RPM: 1725 , Lubrication: Permanent Heavy Duty Gear Oil , Mounting: Any Position , Output Shaft Dia.: 1" , Overall Length: 2.13" , Pinion Material: Hardened Steel , Rotation: Reversible , Seal Type: Single Lip , Shaft Orientation: Parallel , Solid/Hollow Output Shaft: Solid , Speed Reducer Type: C-Face