What is/how do i measure the module of these bevel gears?

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SUMMARY

The discussion centers on measuring the module and diametral pitch of straight bevel gears. The pinion gear has 9 teeth with a tip diameter of 39.3mm, while the gear has 14 teeth with a tip diameter of 54.5mm. To calculate the module, the formula used is mod = pcd/n, where pcd is the pitch circle diameter and n is the number of teeth. Accurate measurements of these parameters are essential for proper CAD recreation of the gears.

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  • Basic mathematical skills for applying gear formulas
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hexhamallstar
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Hi all,

I've got 2 bevel gears that I'm recreating in CAD, I've got the shapes down it's just a little bit of fine tuning with the dimensions, for which I need the module/diametral pitch of the gears.

The pinion has 9 teeth and a tip diameter of roughly 39.3mm, and the gear has 14 teeth and a tip diameter of 54.5mm. How would I go about finding the module/pitch diameter of these gears? They are straight bevel gears, and I've attached photographs below.

Thanks,

Phil
 

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Last edited:
Engineering news on Phys.org
mod = pcd/n

n =# of teeth.

as far as i know, you need one to find the other.
 

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