The 05013E10 Steel Idler Sprocket is a solid steel #50 chain idler sprocket designed to guide chain, maintain proper routing, and support smooth operation in roller chain systems. With 13 teeth, a 5/8" bore, and a 2.9" outer diameter, it’s a dependable choice for replacing worn idlers or building a new chain run—because a sloppy idler is basically an invitation for chain problems to show up unannounced.
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