Quote:
Originally Posted by Kevin Ainsworth
Maybe leaving a little more meat by the gear teeth so you don't have a stress riser that can propagate to the thin web. We leave a 1/4" from the outside of the teeth to the OD of the undercut with about a 3/16" chamfer that cuts into the teeth slightly.
It looks like the broken gear has about 1/8" from the outside of the tooth to the undercut with about a 1/16" chamfer.
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I'm pretty certain we actually failed that gear on the hex as it was pocketed way too close to the shaft.
there is actually a decent amount of material under the teeth based on what we've had work in the past.