Posted by jon banquer on September 20, 2013 at 06:21:59:
In Reply to: Gear Lapping posted by Lee on August 06, 2013 at 11:20:20:
You're going to have to do it yourself. You should be able to find a Red Ring lapper somewhere really cheap unless they've all been scrapped. There's not much top them so easy to recondition if you can only find a (c)lapped-out one :) They use the same principle as a shaver - crossed axes. Best way is to cut the laps yourself, just make some helical gears with 10 - 15* different helix from your part.
The only guys I know who still lap are a small automotive gear place that does it to reduce noise. For tight tolerances, you'll have to do it in-house. I'd be amazed if the guys running Hoflers now even know what a lap is.
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