1922V298 Multi-Speed Belts 4-1/2" ID Boston Gear’s internal gears are

Boston Gear’s internal gears are spur gears turned "inside out

Hand: Left Hand

Click here for spec sheet: SBPA Spec Sheet

non-metallic

Silver Line™

1922V298 Multi-Speed Belts 4-1/2" ID Boston Gear’s internal gears areGates Multi Speed belts are manufactured with a banded or bandless construction featuring high modulus, fiber loaded stock that offers transverse rigidity and flexibility for higher load capacity and longer service life on your variable speed drives. Notch Design reduced thermal and bending stresses for longer life. Smooth running construction for minimal vibration at high speeds. Uniform composition and thickness of the undercord ensure smooth and