Dayco No Slack Idler/Tensioner Pulleys are manufactured with smoother surfaces and tighter dimensional tolerances that translates into less vibration and therefore longer belt life. The use of state-of-the-art 3-D computer aided design (CAD) and finite element analysis (FEA) guarantees the optimal design and maximum structural integrity for both plastic and steel pulleys. Lifetime lubricated ball bearings and double high temperature seals assure peak bearing performance, the most critical element of a pulley's service life. Product Features:Lifetime lubricated ball bearingsDouble high temperature seals to assure peak bearing performanceBuilt with smoother surfaces and tighter dimensional tolerancesMeets or exceeds OE quality
