Oregon Power Mate Rim & Drum System for McCulloch Pro Mac Series
This professional drive system includes a splined drum (clutch cup) with a replaceable rim. The rim floats freely on the spline, allowing the saw chain to align with the groove of the bar. Comes complete with 3/8" x 7 tooth spline. Drive sprocket bearing sold separately..Fits the following chainsaws:McCulloch 155, 165, 355, 365, 375, 515, 605, 610, 650,655, 700, 805, 850, 855, Mac 1-10 through 10-10, Pro Mac 55, Pro Mac 60, Super Pro 70, Timber BearReplaces Part Number 65370Replaces Oregon Part Numbers 21426Fits Crankshaft Diameter .500 (1/2")Drive Sprocket Bearing ORF 11893Rim Spline Size Standard 7 tooth (RSD)Optional Replacement Rim Pitch and Tooth Choices (sold separately) ORF 68210 .375 X 7ORF 22273 .375 X 8ORF 13624 .325 X 9ORF 22270 .404 X 7ORF 13313 .404 X 8