'68 Rear Wheel Bearings

[Dick W.]

[Joe L.]

Re: '68 Rear Wheel Bearings

Warren------

As I've mentioned before, I have done the bearing set-up with both a standard spindle (i.e. bearings installed under interference fit conditions) and using the Kent-Moore set-up tool. I used the same bearings and same shims. I could measure no difference in the results. However, I have no doubt, at all, that the interference fit does change the clearances from the slip fit condition. So, I totally agree with the Timken engineers. The thing is, though, that the effect is negligible and is outside of the measuring capability of the instruments, procedures and expertise we have at hand. If one sets the bearing clearance with the set-up tool at .0015-.002 end play, one will end up with a very satisfactory end result.

[Warren L.]

Re: '68 Rear Wheel Bearings

there wss .003 difference on one of my spindles.

That is substantial and not outside the measurements of any dial indicator, you can see less than .0005 difference easily on this indicator.

If a bearing was measured correctly on the tool then lost as mine did on the actual spindle and it was set up to say .001 clearance on the tool it would be running in preload.

Once again how are you measuring your bearings and coming up with the .001 stated measurement? what are you physically doing to the bearing to come up with that number.

Warren

[Roberto L.]

Re: '68 Rear Wheel Bearings

Hello, after setting the shim with the correct/desirable clearance in the special tool, you assemble the spindle and re-measure to be sure. When I did my spindles I used a slip fit spindle-like tool which I made fabricate for me. After pressing in the real spindle I re-measure and the play was the same (0,003"), so the difference was beyond significance in that context.

Roberto, NCRS #30019

[Warren L.]

Re: '68 Rear Wheel Bearings

How did you measure your bearings?

Warren

[Roberto L.]

Re: '68 Rear Wheel Bearings

I measured the free play (tool/spindle axis) using a dial indicator. I followed GM literature and RMC members advices. After more than 14K miles rear suspension is working without problem. How did you measure yours?

Best regards, Roberto, NCRS #30019, RMC

[Warren L.]

Re: '68 Rear Wheel Bearings

I used a dial indicator of course. My question was for Dick and asked several times how he measured the bearings. Wanted to know how he did it. How did you measure your free play?

Warren