Rim Drive clutch splines worn out?

[Oregon_Native]

was cutting a few days ago and saw was making a rattle in the cut and it was not hitting anything. i thought it has the clutch bearing because the bell wobbles around a lot so i took off the clutch and the bearing is a little worn. but the splines are almost worn off. the number on the bell and the numbers that "Oregon" has don't match but in the I.P.L. for this saw one of the number's it has matches a number that "Oregon" has but for a different saw???
it also lists a different pitch and tooth count?????

the number form my ipl is "95166" "Oregon says this fits Sp-70, 805, 850" .404" 7 tooth
the same part in I.P.L. says .375" 7 tooth

the number on my bell is "86948" with a .375 pitch 7 tooth rim.

the number on the saw in "600041 R"
with a prefix on the serial of "11-"

thought one of you mac collectors might know if a part Oregon make's might fit. :angel:

 

[ray benson]

The Oregon selector guide shows the same numbers for a 610 and an 850. 69209x sprocket rim system 3/8" 7 tooth
Take a look at the selector guide.
http://www.oregonchain.com/SelGuide_PreQualifyUser.asp

 

[Oregon_Native]

now i notice the 805 and 850 are listed twice i think i will be paying my dealer a visit for a clutch bell and bearings.