Can you provide tooth profile/lead charts and explain what “pass/fail” looks like?
Yes. We can provide tooth profile and lead charts and explain “pass/fail” by comparing measured deviations against the tolerance limits on your drawing (or the agreed standard/grade). “Pass” means the results stay within limits for the specified items.
What “pass/fail” actually means
“Pass/fail” is not a simple checkbox. It’s a judgment based on:
• Measured deviation (curve/values from the gear measuring report)
• vs allowed tolerance band (upper/lower limits)
If the curve or values exceed the tolerance band, it’s fail for that parameter.
What we include in the explanation
√ Which parameter is being checked (profile/lead/pitch/runout)
√ Which tolerance/grade applies
√ Where the deviation occurs (localized vs systematic trend)
√ What action is recommended if it’s close to the limit (extra check or process adjustment)
Quick table
| Item | What you see | “Fail” typically means |
| Profile | curve vs tolerance band | curve exceeds the band |
Lead | slope/shape vs band | trend out of band |
Pitch (if included) | spacing values | one/more points out |
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