I know, another cone replacement thread - apologies.
here's what I got:
https://velobase.com/ViewComponent.a...110&AbsPos=383
- Dura Ace circa '82, hub set. Paid a bit too much to get matching parts for my middling TREK 420.
The front hub has a bit of pitting. Wheels does not have the same OD 16.9mm with a 9mm thread ID.
Loose Screws doesn't have anything in stock. Niagara's shop is not working. Universal has some stuff, but not vintage.
I read an older BF thread about polishing cones. I'm thinking of giving that a go.
Cone into drill press. Slowest speed. 600 grit around a wood dowel, with tap magic. Then 2000 grit. Maybe 800 or 1000 grit in between.
My other thought is to get the Wheels CN-R096, the biggest / longest front hub cone Wheels has, and try that. a $29 experiment. I was going to get new balls anyways.
Suggestions on other websites to search?
Warnings about polishing cones, and altering the radius? (making things worse than having pitted cones)
--- some details of what I got ---
Dura Ace front hub
https://wheelsmfg.com/tech/PDF/hub/hb-7400.pdf
Cone: length 15.7mm. Dia 16.9mm
3/16in ball
[MENTION=376975]mrv[/MENTION] : before lacing those hubs, make sure you review this document. The DA 73XX hubs were somewhat unique in that they were designed to be laced differently than most hubs - e.g., all spokes were inserted from the inside of the flange.
https://si.shimano.com/en/manual/sea...271&doctype=SI
Shimano has "renewed" their document repository yet again, and now it can be a hard document to find. The link above works today. It might not after their next "renewal".
If the link doesn't work for you, PM me. I've saved a copy for future reference.
Edited to add: The document linked above is for the 72XX-series hubs. Those were the other Dura Ace level hubs that shared the design. I haven't been able to find a similar document for the 73XX series hubs, but the info should be applicable to both since both share the recessed-spoke design.