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HO pinion gear pitch?


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#1 Alchemist

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Posted 11 July 2013 - 07:40 PM

What pitch is the HO pinion gear please?   Also what is the HO motor armature shaft diameter?  

 

Thank you.

 

Ernie


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#2 Phil Hackett

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Posted 11 July 2013 - 09:53 PM

I have made 64 pitch for HO in the past. What's used now, not sure. The armature shaft size is 1.5mm (.0591) nominal, which means it can be a little bigger or smaller. .0002/inch makes a huge difference at that size.


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#3 Alchemist

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Posted 11 July 2013 - 09:57 PM

Thanks Phil!

 

I was trying gather info because I have a radio shack hobby motor that is almost as small as the HO motor and trying to figure out how to fit a 64 pitch pinion so I can scratchbuild something.

 

Ernie


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