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

This 50BS96 sprocket features a 1-7/16" finished bore including a key-way and two setscrews

Dimension (e): 3-25/32"

#200A12 sprockets have 12 teeth

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