 901 gears and shafts, Anyone know what alloy? |
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| bondo |
 Jul 6 2004, 01:57 PM
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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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| JWest |
Jul 7 2004, 09:25 AM
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Senior Member Group: Members Posts: 1,662 Joined: 6-January 03 From: Fort Worth, TX Member No.: 97 Region Association: None 
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Case hardening is more than a few thousandths deep. What is done is the steel part is hardened on the outer surface (maybe ~ 1mm deep) to give a hard wear layer. The main body is still ductile so the part will not shatter under load. All transmission gears are case hardened AFAIK.
Crankshafts can be nitrided - a chemical surface treatment, but that is not a process used on tranmission gears. |
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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 RAR I'm missing something here. Can you cut off se... Jul 7 2004, 12:45 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 ! 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
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