Oregon sprocket size

[Slime]

Does anybody know the inside diameter of the clutch cup for an Oregon part 30685X. Is it 3" or 2 5/8"? It is a center drive drum and hub with a rim sprocket. I would also like to know the ID of the hub that the needle bearing slips into for this part #.

Thanks

 

[ray benson]

Look at the Homelite section. The 30685x is for the 3" clutch. It uses the same bearing #11807 as the Homelites with the 2.625 clutch. The i.d. on the bearing according to an Oregon book is .625
http://www.oregonchain.com/tech/cross_ref_guides/OCS_113_115.pdf

 

[Slime]

Thanks for the information and reference Ray.