SupSew Model SR-2 Cast Iron,2 Bearing Speed Reducter 3", 6", 9" Pulley for Clutch or Servo Industrial Motors Application: Cast Iron Constructed Ball Bearing (2),Speed Reducer with Adjustable Belt Tightener Mechanism Details: The speed reducer is an optional accessory for industrial sewing machine(s), that you install to reduce the speed of the hand wheel and main shaft to 1/2 of its speed. Does not include the belt(s), you need to replace the single belt that came with your machine(s). It is absolutely necessary if you plan to stitch on leather(s), upholstery or other thick materials, otherwise it would be impossible to control the stitches when sewing on a high-speed industrial sewing machine(s). For example, a 2500=(S.P.M.)= stitches per minute industrial sewing machine would sew 1250 stitches per minute with a speed reducer installed. Speed Reducers gives more torque, in addition to gearing down speed range to 1/2 or 1/3 of what your machine(s), is normally rated for. Requires your custom installation(s),and belt(s). Install it between Machine Hand Wheel and Clutch or Servo Motor "Under Industrial Sewing Machine(s),Stand". Manual Greasing Made in the USA US Warranty: 30 Days labor on defects in materials and workmanship. Non-US Warranty: 30 days parts and labor Availability: NO Condition: New in Box Shipping: This item usually leaves warehouses right after your purchase Returns: See our Store Policy Add to Cart Sale Price$264.99  | 
            

