Gear cutter numbers

Gear cutter numbers

This topic has 1 reply, 2 voices, and was last updated 18 April 2025 at 15:50 by DC31k.

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18 April 2025 at 12:54 #793912
Bazyle
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@bazyle
OK I thought that for Module gears the cutter number increases with number of teeth (rack = No 8), and for DP it decreases (rack = No 1)

But I see this on the RDG site. https://www.rdgtools.co.uk/product-category/involute-gear-cutters-dp-and-module/1-module-involute-gear-cutters-1-bore/

Could get confusing.
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18 April 2025 at 15:50 #793959
DC31k
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@dc31k
Some do, some don’t. The only reliable indicator is the tooth count for which the cutter is suitable.

I think it could be challenging to find a DP one that does not folow the B&S system, but module ones count from both directions.
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