Black Ace 2500BD3X Snugulator Chain Tensioner ANSI 60 80 100 3.5in 3/4in Bore

As the chain runs against the Snugulator, the sidebars of the chain wear initial shallow grooves into the rubber face during the first hours of operation. The Black Ace Snugulator 2500BD3X is a heavy-duty dual-bearing steel and rubber chain tensioner and idler designed for use with ANSI #60, #80, and #100 roller chain.