Board index Flathead Power-Technical Questions, Answers, and Suggestions 45 Flatties PN needed

PN needed

Moderators: Curt!, Pa

Post Wed Dec 29, 1999 11:03 pm

Posts: 582
Location: meridian, id. usa
Have been trying to find the PN for sproket side K or early pre 59 Sportster case race and appropriate bearing and shaft but dont have cataloge that list such animal. or Im as blind as a wambat
Anyone?

Post Thu Dec 30, 1999 4:25 pm

Posts: 28
Location: Ark, USA
I have removed and replaced the Timken race in a number of Sportsters and looking at my K case I believe that is not a replaceable part. No books list that part and it's not a bushing like the right side and my factory manual doesn't mention it as being replaceable and now I'm curious, it can't wear out, why replace it. Steve

Post Thu Dec 30, 1999 7:09 pm

Posts: 582
Location: meridian, id. usa
Actually Im replaceing the one in the wla and since they are very close in od id sizeing and use the timken style bearing instead of the rollers.

Post Fri Dec 31, 1999 2:57 am

Posts: 3061
Location: Central Illinois, USA
Say what!?!? That sounds like a lot of machine work and redesign!
All of the K's I've done (uh,...two) were exactly the same as early Sport's Timkens. All of the WL's I've done (uh,....three!) had the conventional pressed in races that are readily available.
Is there really a standard Timken with the OD of the race and ID of the shaft? If so,GO for it!...Cotten

Post Fri Dec 31, 1999 3:26 am

Posts: 582
Location: meridian, id. usa
45 standard OD is 1.753
K and sportster right side OD is 1.7515
I presume the + oversize rules apply by .005"
steps so +.015 OS would be 1.753 if i did my rithmatic correctly. suppose it would depend on the actual direction of fit?

And dont mean to correct you but it would be the od of the shaft and id of the bushing

[This message has been edited by dotman (edited 31 December 1999).]

Post Fri Dec 31, 1999 4:38 am

Posts: 3061
Location: Central Illinois, USA
I wuz wrong, if I understand what we are trying to do here; It would be OD of the race compared to a Timken race OD,..and OD of the shaft compared to ID of a Timken 'cone'.
But 1.7515 plus .015 is 1.7665
The timkens would fall through loose by .0015, if I understand your measurements, and I don't believe they make such slight oversizes. I do have a Timken data book (from a decade ago) at the shop....Cotten

Post Fri Dec 31, 1999 4:48 pm

Posts: 28
Location: Ark, USA
Did I misunderstand what you wanted? The Timken part number for the race is 07196D, the bearings are 07100, and the preload spacer is X1S07100. Steve

Post Fri Dec 31, 1999 5:27 pm

Posts: 582
Location: meridian, id. usa
100 hp 45 hummmmmmmmm Image


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