A Bearings: Needle Roller and Thrust Balls on Case, Ball on Motor , Brushes: Externally Replaceable , Enclosure: TENV , Gear Case: Die Cast Aluminum , Gear Material: Hardened Steel , Housing Material: Die Cast Aluminum , Input HP: 1/6 , Length Less Shaft: 10.125" , Lubrication: Permanent Heavy Fluid Gear Oil , Max. Ambient Temp.: 40 Degrees C , Motor Type: DC , Mounting: All Position , Overall Length: 11.625" , Overhung Load: 150 lb. , Replacement Brushes: 6YHY5 , Reversible Shaft Output: No , Rotation: Reversible , Seals: On Input and Output Shaft , Shaft Orientation: Parallel , Thermal Protection: None , Voltage: 12 VDC