Hi folks,
After another long break I have, today, finally
tracked down the website I had found that did 1/4" od oversize roller bearings. They are:-
"AAOK"
http://aaok.com/1802 N. Carson St.
Suite #108-2178
Carson City, NV 89701
USA
The bearings can be found in these search results
http://aaok.com/catalogsearch/result/index/?q=1%2F4%22+ROLLER&commit=Go&p=1 (scroll down a bit to get the first of them).
Unfortunately all was not quite what I seemed to remember and they don't do 1/4" OD by 1/4" wide rollers. They do, however, do:-
0.025" OD by 0.360" in std, +0.0006" and +0.001" oversize.
0.025" OD by 0.726" in std, +0.0006" and +0.001" oversize.
0.025" OD by 0.490" in std, +0.0002", +0.0004", +0.0006", +0.0008" and +0.001" oversize.
0.025" OD by 0.600" in std, +0.0002", +0.0004", +0.0006", +0.0008" and +0.001" oversize
I have emailed them to ask if they can source 1/4" by 1/4" in oversize sizes, along with umpteen other US based Harley Davidson and Indian Vintage bike dealers/suppliers. If I get any positive replies I'll let you know.
At the moment I am not sure how useful this is. I need to go and double check my measurements of the various bearing races. In the mean time..... Would it be feasible to shorten, say, the 0.360" or 0.490" bearings by grinding them down?* Or would this introduce a pile of other problems? For example: Going through the hardening on one end would cause strength / wear issues? Ground end would be sharp and need chamfering? Given the relatively low mileage I am likely to do I am not sure quite how serious these issues would be.
If nothing else I have proved to myself that I wasn't going entirely mad and the web site I thought I had found and lost has been found again. Also these fellows may yet solve my problem or, perhaps having found them, solve someone else's.
Cheers Mike 8-{>
*Have access to precision surface and cylindrical grinding facilities.