Oregon 18720 power mate replacement floating sprocket drive rim 3/8 pitch 7 T
18720 Oregon power mate replaceable Sprocket drive rim - 7 tooth 3/8 pitch. Small 7 spline. This is part# 18720 replaces 28537. 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.
- Pitch: 3/8", Size: Standard 7 Spline, Tooth Count: 7
- Radial port design uses centrifugal force to throw off sawdust and debris
- Wear-depth indicators show when it's time to replace
- For best performance, replace every two chain loops