03-02-2014, 02:10 AM
I need to repair the tips of the teeth on this gear. Its the pinion that mates to the rack on a Hardinge HLV lathe. I plan to build up the damaged teeth with bronze brazing rod, then machine them with a single point cutter.
There is a bearing surface just below the gear that a needle bearing runs on, I assume its hardened but the gear isn't very hard, it can be filed. If I let the shaft air cool I'm guessing I'd soften the shaft. Should I quench it in oil them temper it?
![[Image: IMG_1065.jpg]](https://lh6.googleusercontent.com/-TWeTIf3WlWo/UxLSpZhi_dI/AAAAAAAAB88/pBQWVMcoCCo/s1280/IMG_1065.jpg)
There is a bearing surface just below the gear that a needle bearing runs on, I assume its hardened but the gear isn't very hard, it can be filed. If I let the shaft air cool I'm guessing I'd soften the shaft. Should I quench it in oil them temper it?
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Greg
Greg