1B58SDS Sheave single-groove 6.15" OD 08B Stainless Steel Hollow Pin Roller Chain this is the largest standard

this is the largest standard rollerless chain available

This 160R11H sprocket is a durable

This 120E27 sprocket is a durable

For more information on a single groove 1C90SF sheave

and precision A-Plate sprocket with 28 teeth that is manufactured out of high-quality steel

1B58SDS Sheave single-groove 6.15" OD 08B Stainless Steel Hollow Pin Roller Chain this is the largest standardThis 1B58SDS sheave features one groove, is 6. 15" in diameter, and is designed to use a SDS bushing. QD (quick detachable) style sheaves offer a wider selection of bore sizes versus a standard "fixed" bore style sheave. Also because they are a two component part if one component fails the entire part doesn't need to be replaced. All of our sheaves are manufactured out of an extremely durable cast iron, are dynamically balanced at the factory, and are