3-speed D1138 replacement motor from NBK. Fits older model Buck stoves, but was also used on a variety of older and now discontinued stove brands. Diameter: 3-3/8"; HP: 1/50, 1/80, 1/140; Volts: 115; F/L Amps: 0.9, 0.6, 0.5; Phase: Single; Hz: 60; Service Factor: 1.00; RPM: 1550, 1300, 1100; Speeds: 3; Rot.: CWSE; Efficiency: 35%; Shaft Diam.: 5/16"; Shaft Length: 2-1/2"; Bearing Type: Slv; Wt. Lbs.: 4.1; Type: Shaded Pole; Mounting: Thru-bolt/Belly band; Enclosure: TEAO; Insulation Class: B; Thermal Protection: Yes; Ambient Operating Temp. (Celsius): 40; Agency Certification: UR/CSA; A: 4";