For sale is a Boston Gear Series 700 Gear Motor Assembly. Catalog No.F718-50-B5-G 12. 1:50 Gear Ratio. 425 Inch-Lb Rated Output Torque. 7/8" Output Shaft with 3/16" Keyway. Baldor 1/2 HP 3/60/208/230-460V 1,725 RPM AC Motor Drive. Attached 3.5" Dia. 16 Tooth Chain Sprocket. I removed this gear-motor from a running machine at a local plant that has recently closed down.