Gear cutter definitions.

[Andrew TinsleyParticipant @andrewtinsley63637]

[Andrew TinsleyParticipant @andrewtinsley63637]

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"?

Thanks,

Andrew.

[Brian HParticipant @brianh50089]

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

Brian

[Andrew TinsleyParticipant @andrewtinsley63637]

Thanks Brian,

I had not thought of that.

Andrew.

[Jouke van der VeenParticipant @joukevanderveen72935]

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

Regards,

Jouke

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