Stub Acme 2G and 4G

[Coog71]

I have a part where essentially we have two threads on the ID of one side of a part. The two threads are the same size and separated by a small thread relief. The only difference is, the Engineer wants to use a class 4G thread closest to the face and a class 2G thread after the first thread relief. Does anybody see this posing any issues during manufacturing or assembly? Can they be run during the same threading operation?

 

[ak762]

check thread dimensions with this calculator, it say all.

http://icrank.com/cgi-bin/pageman/pageout.cgi?path=/data/acme/acme.htm&t=2

 

[mfgenggear]

Coog

Yes it can machined at the same operation.
ref ANSI B1.5 latest rev.

It is the 3G & 4G tolerance of the pitch diameters, both are general purpose
sorry for the late reply

Mfgenggear