Stainless-steel insert allows distribution of torque over a larger surface area, increasing the force that can be exerted on the sprocket, gear or pulley.
Sprocket, gear and pulley line
Solidur Pacific (Portland, OR) has introduced the Solid Torque(TM) line of sprockets, gears and pulleys. It offers improvements in the load- bearing characteristics over standard nonmetallic components.
Jan 31st, 1996