Belt Tension PulleysIdler pulley units are tensioning systems for belt drives and idler units:
- they increase the wrap angle in belt drives and can therefore support higher power levels or allow smaller units to be used
- they allow shorter centre distances
- they reduce the wear on the belt drive.
Type A is suitable for vee belts, type B for flat, vee and round belts, type D for round belts, steel cables and hemp ropes.