Neck bearing cup resurfacing

[paddy]

I would like to use origional ball bearing neck cups. However I am finding that many of them have indents or groves were the balls sat and have wore the race surface. Is anyone resurfacing these?
The aftermarket cups kit that I have gotten are machined incorrectly causing problems with dampner and height issues. Thanks. Paddy

[Jerry Wieland]

I would like to use origional ball bearing neck cups. However I am finding that many of them have indents or groves were the balls sat and have wore the race surface. Is anyone resurfacing these?
The aftermarket cups kit that I have gotten are machined incorrectly causing problems with dampner and height issues. Thanks. Paddy

What I did on my JD was mount the cup in my lathe and a die grinder on the tool post with a real fine burr that was the same diameter as the balls and 'deepened' the track until I had a nice surface. Definitely helped and looked good. I do not know how deep the hardening is but...

[paddy]

Thanks Jerry unfortunately for me. That is beyond my skillset.
iI am still looking for good OEM cups and races but I see that Samwell and W&W both make the sets.

[Highlander]

I have had the cup bearing surface reground and they worked great. The vendor I used has been rather busy of late and may not be able to take on any more work at the moment. PM me for more info.