Unit Bearing Motor ECM Totally Enclosed Air-Over 1/20 HP 1550 Nameplate RPM Frame Nonstandard Voltage 115 Hz 60/50 1 Phase Full Load Amps 0.9 Output Watts 38 Stud Mounting Thermal Protection Electronic Insulation Class B Service Factor 1.0 Shielded Ball Bearings Frame Material Steel Max Ambient Temp 55 Degrees C Rotation CCWLE Overall Length 5-31/32 In. Shaft Type Single Flat