Banjo ring, is it usable?

H

HHR&R

Junior Member
I have this ring with matching gear, but I wonder if it is usable, all the teeth are pristine, but what do you think of this surface?
img_2199.jpg

The blueing, the scratches, does it make a good candidate for a rebuild or no?
Is there a way to clean up this surface?
The thing is where I live I cannot find this kind of parts and have to import them so it gets really expensive real fast.
Thank you.
 
HHR&R said:
I have this ring with matching gear, but I wonder if it is usable, all the teeth are pristine, but what do you think of this surface?
img_2199.jpg

The blueing, the scratches, does it make a good candidate for a rebuild or no?
Is there a way to clean up this surface?
The thing is where I live I cannot find this kind of parts and have to import them so it gets really expensive real fast.
Thank you.
Click to expand...

If the section you'd photographed is typical of the entire gear, then yes, I'd use it.
It appears to be a very nice gear with very little wear. It also appears as if it was not stored the best way possible.
I would stone the teeth with a fine grit wet stone.
I'm kind of a crazy person when it comes to doing this correctly. That being said, I see no reason why you would have an issue with this gear.
 
Yes the gear is nice, but I'm more concerned about the middle section of it,
10000116.jpg

Compared to the 6.8 gear I want to replace.
10000115.jpg

I don't know if it's paramount that this surface be smooth as a baby's bottom or some scares are acceptable.
 
I would polish that section of the ring gear - cannot hurt it. Use a good flat stone and don't try to get rid of all the ridges . . . just smooth it out a bit.

Also, keep in mind that the axle only turns in that area when there is a need to "differentiate" between the speeds of the two axle shafts . . . it is not turning at a high RPM all the time (like the ring and pinion gears are).
 
The india type flat stones such as for knife sharpening work fast on stuff like that. The newer, the better for closer tolerance. They are available on Amazon, McMaster Carr, or other sites for a decent prices. I have a lot of Norton stones that I use for stuff like this.
 
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