Bearings: Ball , Duty: Continuous , Efficiency Group: Standard , Enclosure: Totally Enclosed Nonventilated , Frame: 56C , Frame Material: Rolled Steel , Hazardous Location Class: 1 C,D / 2 F,G , Insulation Class: H , Max. Ambient Temp.: 40 Degrees C , Motor Application: Hazardous Locations , Motor Design: Permanent Magnet DC , Motor Enclosure Design: Totally Enclosed Nonventilated , Motor Shaft Design: Keyed , Motor Thermal Protection: Auto , Motor Type: DC , Mounting: Rigid C-Face , Nameplate RPM: 1750 , Rotation: CW/CCW , RPM Range: 1701-1800 , Service Factor: 1.0 , Shaft Dia.: 5/8" , Shaft Length: 2.125" , Temp. Code: T5 , Thermal Protection: Auto