Description
Build your own tensioner. Ball bearing idler sprockets are fully machined with hardened teeth which offers increased wear resistance to extend sprocket life. The ball bearings are precision ground, double-sealed. They spin freely on the built-in bearings to guide and control slack in your chain. The pitch is 5/8" and the sprocket is for a shaft diameter of 5/8". These are rated for up to 4000 RPM. The RPM's are dependent on the load size.
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