Posted by Reiska on August 07, 2017 at 15:14:45:
In Reply to: Re: Questions about gear material and Heat Treatment posted by BillS on August 03, 2017 at 13:31:51:
SAE 8620, also known as 20NiCrMo2-2 is a good material for gears. There are even better ones available, but for this small tooth module, this material should be good. There are guide sheets available for heat treatment for specific material. For this small module, I would not suggest very thick carburising layer.
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