The HS-785HB sail winch servo with its large drum wheel has 3 1/2 revolutions of travel for hauling in even the largest of sails. With its dual ball bearing supported output shaft the HS-785HB will provide years of reliable service. Features Specifications Motor Type: 3 Pole Bearing Type: Dual Ball Bearing Speed (4.8V/6.0V): 1.68/1.38 Torque oz./in. (4.8V/6.0V): 153/183 Torque kg./cm. (4.8V/6.0V): 11.0/13.2 Size in Inches: 2.32x1.14x1.96 Size in Millimeters: 58.93x28.96x49.78 Weight ounces: 3.88 Weight grams: 110.