When selecting a belt, you want a perfect fit in the pulley sheath. Belt and sheath walls should mate perfectly and without gaps. Think of belt-wall contact as you would tire contact with the road.

When a rope, cable or belt runs along ... that they use. Pulleys and gears. When a flag is raised, it will often be lifted using a pulley mechanism. A pulley is a wheel on a fixed axle.

If the dryer belt develops wear or has simply become slack with age, a loose or poor fit with ... the new idler pulley in the same bracket, and thread the belt through the wheel and around the ...