You need a black-oxide coated sprocket that meets all ANSI standards today. Find your solution with this 40B15 sprocket. This three-pack comes with hardened teeth on each component, which is an important quality for a mechanical system. With every turn, a #40 roller chain will remain true to this durable sprocket's position. High-quality materials translate into minimal wear over the years. Breakage isn't a concern, as rusting is practically impossible on these parts.

A unique feature of this precision sprocket is its bore hole. It comes standard with a 1/2-inch ID hole, but USA Roller Chain & Sprockets offers more for your dollar. We specialize in bored-to-size sprockets, which means that custom parts are available for each order. Simply give us a reasonable lead time before your deadline. Enjoy a perfect fit with no keyways or set screws to challenge an assembly. USA Roller Chain gives you versatility in sprocket parts.