Tensioners Idlers & Dampers

Tensioners, idlers, and dampers are critical components within an engine’s belt-driven accessory drive system. Tensioners maintain consistent belt tension, automatically compensating for wear and thermal expansion, typically employing hydraulic or spring mechanisms. Idler pulleys guide the belt and alter its direction, reducing stress on critical components. Dampers, specifically crankshaft dampers, reduce torsional vibrations, protecting the crankshaft, timing chain, and related engine parts from harmonic resonance. These components are commonly found in front engine accessory drives and timing systems, utilizing sealed bearings and robust housing materials for durability.