Each triangular belts is also anodized to prevent rust.As more and more cars were optioned with lots of power-hungry accessories running off the triangular belts.Then release the tension. Feel for binding and creaking in both directions.
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Automotive engine power transmission system parts(pulley)
this pulley is assamblied for accessory tensioner &idle pulley for engine belt for crankshafts ;Powder metal sintering process cost is better than CNC machining process and molding process ...