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Gear cutter definitions.

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Andrew Tinsley28/03/2020 16:18:47
1054 forum posts

Hello everyone,

I am sorting out some inherited gear cutters. Most of them have the DP and tooth range stamped on them some also have the Pressure angle too.

There are quite a few that have simply P stamped on them where I would expect it to be DP. Do I assume that the P is just a shortened form of DP?

A few have nothing except the manufacturer's number, which I assume are "specials"?



Brian H28/03/2020 16:45:39
1569 forum posts
102 photos

P could stand for pitch which I would guess would be circular pitch (CP).


Andrew Tinsley28/03/2020 17:01:29
1054 forum posts

Thanks Brian,

I had not thought of that.


Jouke van der Veen29/03/2020 09:58:08
42 forum posts
6 photos

DP appears to stand for Diametrical Pitch. Number of teeth on a diameter of 1”?



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