A-165271-AI 60 IDLER SPROCKET 15T 1/2One New Aftermarket Replacement #60 Idler Sprocket 15 Tooth, 1 2" Bore This aftermarket replacement #60 roller chain idler sprocket features 15 hardened teeth and a 1 2" bore. Idler sprockets are used to guide, tension, or redirect roller chain in drive systems found across agricultural equipment, construction machinery, and industrial applications. The sprocket mounts on a stationary or tensioner arm shaft and includes a sealed ball bearing pressed