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bearing surface in gear fix?

M

mmidlam

Member
I have a old Deutz 9006. One of the gear bearing surface is tore up. The pin rollers run directly on the gear hardened ID surface. Can the gear be repaired?
 
Not in any practical sense. Your best bet would be to have the gear bored larger if there is enough meat to do it, and have a sleeve made. Gears are hard steel, so you would need to be sure the sleeve was hard enough to have bearing rollers run on it. We turn down mainshafts on chevy transfer cases and run undersized sleeves on them, but they are bushing surfaces, not for roller bearings. Then there is the cost involved to do it. It may be cheaper to get a better gear.
 
Yes it can be built up by submerge arc welding, with the correct Rockwell wire. the same process we use on crankshafts. Finding a shop with the correct wire will be the biggest challenge. Larger city would be your best chance.
 
I'm not really familiar with the application but maybe this will help. Your saying that the pin rollers run on the hardened ID of the gear. I don't know if it will help, but Rollway bearings can be had with removable inner and/or outer races. Below is a link to their site. If you go to the downloads you should be able to get a copy of their catalog with dimensions. With that info, if you can find one with an outer race with an ID compatible with what you need, you may be able to have the ID of the gear turned oversized and use one of the Rollway races, pressed in, to being it back to standard.

Like I said, I don't understand the application completely, but you might even be able to replace the 'pin rollers', that origionally rode on the gear, and use a complete bearing assembly instead.

Good luck and I hope this helps.
Rollway bearings
 
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