80-4 Roller Chain Tensioner 120B28 Sprockets and precision double single sprocket

and precision double single sprocket with 16 hardened teeth that is manufactured to accept a 2517 bushing

D120B21 sprockets with a stock bore is supplied with a standard 1-1/2" inside diameter hole with no keyway or set screws and can be easily machine bored to custom sizes

AK109 Pulley 1-7/16" Dimensions

What separates this AK51 pulley from the others is that it is made using a high grade-35 cast iron

80-4 Roller Chain Tensioner 120B28 Sprockets and precision double single sprocketThe floating 80 4 roller chain tensioner has an extremely simplistic design but is probably the most effective and economical tensioner on the market. It is constructed out of high quality UHMW and stainless steel parts so it can work in wash down applications and food environments. It is extremely easy to install and out lasts most other chain tensioners that are on the market. Besides chain tensioners we can also supply 80 4 roller chain, roller