 901 gears and shafts, Anyone know what alloy? |
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| bondo |
 Jul 6 2004, 01:57 PM
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#1
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Practicing my perpendicular parking  Group: Members Posts: 4,277 Joined: 19-April 03 From: Los Osos, CA Member No.: 587 Region Association: Central California  |
I found someone at Cal Poly willing to help me with annealing and rehardening 901 internals so I can machine them. He said it would be helpful to know what alloy the steel is. He also asked if they were case hardened.
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| RAR |
Jul 7 2004, 12:45 AM
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Member Group: Members Posts: 189 Joined: 24-January 04 From: Washington state Member No.: 1,598 |
I'm missing something here. Can you cut off second gear without destroying it? I'm assuming you want to end up with a 904 mainshaft. You want two second gears in the same transmission, for racing purposes, correct? Anyway if the shaft and gear is heat hardened (or case hardened), you need to get a Rockwell hardness before annealing it so you can come back to it, so it will match the gear it meshes with. I don't know if they case harden gears. If yes, the metal should be soft a few thousandths under the skin.
I know they aren't cheap, but Ottos sells new 904 mainshafts, and you might be ahead of the game buying one. |
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Posts in this topic
bondo 901 gears and shafts Jul 6 2004, 01:57 PM
Bleyseng unobtainium is what I have heard.............. Jul 6 2004, 09:09 PM sgomes Dang! You beat me to it! :lol:
I'm... Jul 6 2004, 09:37 PM RAR Case hardening is a coating that hardens only the ... Jul 7 2004, 12:09 AM bondo Hmm, I tried carbide.. it wore bits dull and barel... Jul 7 2004, 12:14 AM Mueller you might also have the option of grinding the gea... Jul 7 2004, 01:35 AM bondo Two second gears? Nope. I want a taller ratio for ... Jul 7 2004, 09:12 AM James Adams Case hardening is more than a few thousandths deep... Jul 7 2004, 09:25 AM ! Why not change the ring and pinion? There was a t... Jul 7 2004, 09:37 AM tdgray Gears are typically made of 8620 steel, then carbo... Jul 7 2004, 09:43 AM bondo I don't want to change the ring and pinion bec... Jul 7 2004, 10:50 AM tdgray A hardness test will not tell what "kind" of mater... Jul 7 2004, 11:06 AM bondo Well he said it would be nice to know what kind it... Jul 7 2004, 11:14 AM
RAR |
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