520x120 O Ring Sealed Chain

A reliable non sealed affordable chain for heavy duty usage, with improved strength over our standard chain. Manufactured from carbon alloy steel, which is heat-treated and shot-peened for maximum strength and durability. Cold forged seamless bushings for longer chain life. All RK chains are pre-stressed and pre-stretched for superior performance and to minimize elongation during the life of the chain. Excellent quality and cost performance