This product has been discontinued. To see if there’s a substitution that meets your needs, please contact Technical Services at 800-223-5168 or use our Part Finder.
The 544680X Power Mate Rim Sprocket System includes a 9-tooth, 1/4" pitch small 7 spline (SM7) sprocket. It is designed for every type of chain saw user. The chain and bar groove alignment is maximized, resulting in extended operational life and reduced overall costs. The sprocket system's two-piece design includes a drum which allows the rim to be replaced multiple times before you need to buy a new unit. Replace every three rims.
Product Details
Pitch: 1/4", Size: Small 7 Spline, Tooth Count: 7, SM7
Extend operational life by maximizing chain and bar groove alignment, while reducing overall costs
A two-piece design includes a drum with a replaceable rim, entire unit is replacement
For best performance, every three rims
Specifications, Details & Support
Sprocket
Pitch
Pitch
Chain Pitch is the size of the chain, and is defined as the distance between any three consecutive rivets divided by two. Oregon chain is made in several pitches - 1/4" is the smallest, 3/8" is the most popular, 3/4” is the largest. Pitch is important because the drive sprocket must be the same pitch as the chain, and if applicable, the bar nose sprocket. The easiest way to determine the pitch of your chain is to look at the number stamped on the drive link.
1/4"
Sprocket Tooth Count
Sprocket Tooth Count
Your saw may be compatible with various drive sprockets. If this is the case, a smaller tooth-count will deliver more speed, while a larger tooth-count will deliver more torque (useful on smaller saws). Tooth-count may also influence the drive link count on replacement chain.