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40(74): 40-1 D Regular Roller Chain Offset Links
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40(74): 40-1 D Regular Roller Chain Offset Links * Consistent wall thickness of seamless rollers to reduce vibration and allow chain to run smoothly * Bushings and sidebars made from special alloy steel for improved fatigue resistance * Pins are gas-carburized and precision ground for longer wear life * Continuous-flow heat treating system means even hardness and case depth * Chains are pre-stressed * See chart for specifications
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