The key component-tightening pulley of the hand-held binding machine is working under the action of the multi-intersection changing forces.

Our products mainly include crankshaft pulley, water pump pulley, air-conditioner pulley and electric motor pulley, tensioner pulley, damping pulley, Idler assy pulley.

So a tight wheel should last longer and be stiffer while a softer build can resist impacts better but will have greater chance of metal fatigue failures.