Spotted while in the midst of replacing my Tour Easy’s rear grip shifter:
As you might expect, the cable saws through the side of its ferrule and the brazed-on frame fitting, because it’s been basically impossible (for me, anyhow) to find a replacement derailleur duplicating whatever the good folks at Easy Racers shipped back in 2001.
On the upside, this derailleur’s cable entry has a nicely rounded ramp eliminating the need for my brass cable pulley widget.
Memo to Self: Perhaps running the cable around a bearing anchored to the frame fitting would help?
I’ve obviously forgotten to fix this for several years, so putting it here may serve as a Round Tuit.
The Smell of Molten Projects in the Morning 
Just make a new ferrule out of tungsten carbide. :)
https://www.ebay.com/p/Origin8-Cable-Stop-Or8-ALY-DBL-28-6-SL/1300419290?iid=131747621700&thm=1000
I like it, but of course the Tour Easy has 1 inch frame tubes: 25.8 mm atop the paint.
I’m thinking maybe a Delrin or UHMW PE bushing would do the trick. The cable is ready to snap, so I gotta think fast!
https://www.ebay.com/itm/Origin8-Cable-Stop-Alloy-Double-28-6-Black/401531226693?epid=2177610696&hash=item5d7d204a45:g:ZAMAAOSwQQla6OjH
Looks like an opportunity to purchase a grinder and a welder! :-D
IIRC, fro rec.bikes, fittings like that are brazed on. Me, I’d think about a two piece aluminum bracket, but That Way Lies Madness. (too late for me…_