21358X Oregon PowerMate Rim Sprocket System 3/8″

21358X Oregon PowerMate Rim Sprocket System 3/8".  Spline small 7.  Fits the following models:  Echo CS-451, CS-452, CS-500, CS-510 EVL, CS-550, CS-610; John Deere 50V, 55EV, 55V, 7600, Green Machine; RedMax G561AVS, G621AVS; Sears 35826, 35829.

 

Features:  1) Extend operational life by maximizing chain and bar groove alignment while reducing overall costs, 2) Two-piece design includes a drum with a replacement rim, allowing the rim to be replaced multiple times before the entire unit is replaced, 3) Replacement schedule:  every three rims, 4) Some Oregon Power Mate systems have bearings installed, but some do not. Part numbers ending with a number have bearings installed. Part numbers ending with the letter "X" do not. Bearings must be purchased separately for all rim systems having part numbers that end with an "X".