gulfcoastguy
Veteran Member
Aramid is the generic word for kevlar.It should last a good long while. Honda has oil-runner belts in some small engines for over a decade now.
"As an alternative to camshafts or oil pump chain drives, timing belts also significantly reduce CO2emissions. The CONTI® OIL RUNNER Zahnriemen. timing belt is a ContiTech Power Transmission Group innovation offering extended service life. Thanks to a fabric-reinforced HNBR compound and a specially treated tensile member as well as a media-resistant reinforcement fabric made of aramid fibers, this timing belt safely and reliably transmits drive forces, even in oily environments. This ideally suits the timing belt for driving oil pumps or camshaft timing assemblies, where it offers significant advantages over toothed chains. Compared to its metal competitors, this high-tech belt offers a host of advantages: It reduces frictional loss by 30 percent, thereby reducing fuel consumption and lowering emissions. Noise is also minimized and there is much less elongation of the drive belt. Since the oil pump drive is often a basic two-pulley setup with short center distances, a drive solution involving a Conti Oil Runner timing belt does not require an additional tensioning rail as a chain drive would. The timing belt system solution can thus actually turn out to be much less expensive than a chain-drive system. What is more, optimized noise control makes driving more pleasant for the driver. This explains why carmakers are increasingly turning to timing belts in place of chains in the interest of more fuel-efficient, eco-friendly and climate-neutral engine designs."
sourced from Continental's website