Oregon 543767 replacement floating sprocket drive rim 1/4 pitch carving 9T
543767 Oregon power mate Sprocket drive rim - 9 tooth 1/4 pitch for converting saws to run 1/4" pitch carving chain. This is a Small 7 spline.This is part# 543767. Oregon rims have wear depth indicators to tell when to replace. It fits small 7 spline sprockets. Oregon makes a standard 7 spline and a small 7 spline. If a penny fits inside the rim- it is a small 7 spline. If a nickel fits inside - then it is a standard 7 spline. Make sure to buy the correct one.