Rim sprockets align saw chain with the groove in the chainsaw bar. The’ floating rim’ slides on a splined hub that is generally part of the crankshaft.
Chainsaw Rim Sprockets are sized for:
- Pitch…e.g. 1/4, .325, 3/8 (Click HERE to learn more about pitch)
- Diameter of spline…e.g. mini, small, standard
- Number of slots (teeth) on the spline
- Number of drive teeth (recesses) around the perimeter
For the Log Wizard and Log Master use either the .325 or the 3/8 small spline rim sprockets…depending on how your chainsaw is set up.
Most carvers who are converting their chainsaw to 1/4 pitch will use the 1/4 small spline.
Remember: You saw needs to have the center rim system installed to use a rim sprocket.
Most sprockets are branded ‘Oregon Power Mate’ (they now own Carlton and Windsor I believe), however some don’t show the mfg. name.