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Gates’ Green Stripe DriveAlign automatic belt tensioner is designed to resist extreme vibrations while providing stable damping for the life of the engine, says the company. Other features include a round, torsional spring that has less flex-fatigue than flat spring designs; a labyrinth seal system to reduce contamination of internal parts; and a steel pulley with twin rows of ball bearings to minimize friction, wear and noise.

Gates Rubber Company (www.gates.com)