108-026-01 Roll Ring Tensioner 60B46 Sprockets This 6B54SK sheave features six

This 6B54SK sheave features six grooves

D60B35 sprockets with a stock bore has the standard 1-1/4" inside diameter hole with no keyway or setscrews and can be easily machine bored to custom sizes

What separates this double 2AK27 pulley from the others is that it is made using a high grade-35 cast iron

Insert Bearing #: CSB202-10

Specifically

108-026-01 Roll Ring Tensioner 60B46 Sprockets This 6B54SK sheave features six108 026 01 Roll Ring Tensioner is a high quality, maintenance free, and self adjusting chain tensioner. The chain tensioner installs in seconds and even works in reversing applications. The 108 026 01 size tensioner works with sizes 08B and #40 chain, and features 26 teeth. It's manufactured out of a specially formulated polymer that has a resistance to ultra violet rays, radiation, temperatures, a wide range of chemicals, abrasion, and doesn't change