Attention Dealers: Some Oregon® spur sprockets 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. See bearing fit up info starting on pages FOR 190–194.
*For the 6-tooth spur column part numbers, use only with 3/8" Low Profile™ chains (90PX, 91P, 91PX, 91VXL) or the competitive equivalent of the previously listed chains.
Spur Sprocket Additional Components
Bushings NOTE: Additional components are available separately and part numbers are listed in the charts on pages FOR 190–194. FOR 172 Sprockets