German drawing abbreviation help

[m3change]

hi

I have a German drawing of a can filling machine. There are two diameters noted on the drawing. One of the diameters has the abbreviation Tkr diameter 613. Can anyone please tell me what Tkr means? Thanks!

 

[Walterke]

Teilkreis. Don't know the word in English.
Basically it's a circle that's used to define other features.

NX 7.5
Teamcenter 8

 

[m3change]

Thankyou, just looked up the translation for "teilkreis" which is just "pitch circle"

 

[juergenwt]

Teilkreis = pitch circle is correct. Juergen

 

[Walterke]

Google translate just gave me 'circle'.
That wasn't really helpful...

NX 7.5
Teamcenter 8