Reverse engineering helical gear

[[Ch...]]

Can anyone give me tips for reverse engineering a 52 tooth helical gear?  I'm not finding much on this topic when I search old threads.  

[[Jo...]]

Hello Chad,

i would probably look for a gear generator and put in parameters i measured at the sample.

Then at some point start checking by surface comparision how close i am getting.

[[Ch...]]

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The gear generator is a good idea.  I'll be GOM scanning the gear as well.  Should be able to figure out Helix angle from that.  Just want to hear from people who have experience doing this, it might save me some time. 

 

[[Jo...]]

I got almost no clue about gears 🙂

The best part about the generator approach is, that the parameters it askes for, tell you what you need to measure aswell.

[[Ro...]]

GEAR PRO has a function to support you with „unknown gear“.

Just have a look into the user manual.

You have to define start parameters, after that the routine will scan left and right flank and suggest „new“ parameters depening from the actual results.

After that you can repeat the process iteratively.

[[Ch...]]

Chad,

 

 yes Gear Pro has 'unknown gear' and older manual used to have basic instructions as well.

a quick google search should pull up some helpful info. 

With a calypso alignment you can roughly measure the helix angle for example.

 

Good luck.