Boston Gear 30223570 642B-20 helical speed reducer with 20:1 ratio. Cast iron housing for general industrial drive applications. Single reduction design with solid output shaft.

Product Features

• A selection comprising seven common sizes permits use in many different applications.
• The Standard NEMA C-face input flange increases adaptability, allowing the 600 Series to be mounted to any industry standard motor.
• Single, double, and triple reduction models provide a wide array of ratios for increased versatility.
• Base-mount and output-flange-mount models further increase versatility.
• The 600 Series is assembled in Boston Gear's ISO 9001-certified facility to ensure precise quality control.
• Washdown-duty models, which are well-suited to wet and corrosive environments, add flexibility.

Specifications

• 6 basic sizes
• 1/20 - 55 HP
• Ratios from 1.6:1 to 160:1 (23 increments)
• Output torque ratings from 119 lbs./in. to 20,000 lbs./in.
• Non-flanged, NEMA C-face, and scoop-mount input styles
• Base-mount and output-flange-mount models available
• Output shaft diameters from 5/8" to 2-3/8"