TROY, Mich.—Dayco Products L.L.C. has come out with two serpentine belts, made from specially designed EPDM rubber compounds, which will be introduced at the Automotive Aftermarket Products Expo, to be held in Las Vegas Nov. 4-6.
The Dayco Poly Rib W Serpentine Belt is engineered to provide a better solution on applications associated with noise caused by misalignment, an ongoing problem with high-mileage vehicles, the company said.
“We have tested this belt on highly demanding drives during real world use and can say it is the quietest belt we've produced for our market,” said Randy Foster, director of product technology for the Dayco North American Aftermarket division. “The belt also features a new rib material which provides a consistent rib surface throughout the life of the belt while eliminating noisy belt conditions.”
The other new offering the firm is showcasing at the expo is the Dayco Poly Rib Aramid Serpentine Belt, which is engineered to maintain a quiet, vibration-free drive system and resist the expected elongations, especially during high accessory loading, Dayco said.
Original equipment manufacturers are using serpentine belts with aramid tensile cord on specific applications that may have noise, vibration or harshness issues, or in drive systems in which available tensioner take-up is minimal, the company said. The firm's aramid serpentine belt fits that bill, it said.
The new belt's “unique feature of length stability and minimal stretch can aid in those difficult drives where span vibrations and tensioner movements are excessive, resulting in reduced belt noise,” according to Jay Swope, principal belt engineer for Dayco.
Both belts were specially designed to resist cracking and perform better under extreme temperature ranges, Dayco said.