Quote:
Originally Posted by Accelo
.007 thousand is not a little more, it's a bunch for something a nominal 2.5" in diameter.
It will require tons of force to install this and will likely reduce the internal diameter so much that the axle will not install with the necessary diametric clearances.
" With as easy as the race came out, I think a little more crush wouldn't hurt", you need to measure the bore to get the exact interference fit.
Typically, it would be in the order of .0005 per inch in diameter. I would expect to see .0015 to .002 interference fit in most applications, with this diameter.
I suggest you look for a better/different bearing.
I have experienced this issue before. I'm glad you identified the size issue before the installation. In my case, I did not identify the fitment issue, the first time I did this. I believe they are just substituting another "close to size" bearing.
There is no way a bearing manufacturer would be this far off in sizing.
Since this is a straight roller bearing, no shim is necessary. Seems more like a splash shield than anything.
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Last night I went home and tried to measure the inside diameter of the tubes. I don't have a really good caliber to measure the inside, but with my weak skills at measuring, I was coming up with 2.531 to 2.533. I was trying to measure in different places, but I can't imagine the tubes our of round, but they are 60 years old.
I also did some searching on line at different rear end parts distributors and the regular Classic Parts, etc. All were saying that the 63 rear uses a 2.535 bearing.
I should have taken another picture of the bearing because the bearing also now looks like it has a slight step in it on the outer race. One side is very slightly smaller then the other side. Not sure what that is about, but the one side does start a little easier into the tube when I just put in there by hand.
Since, I am having an issue measuring, does anyone know the correct diameter of the axle tube or what size bearings they were able to find?
Rob