The meaning of JT 13 in DIN print

[SeasonLee]

Please ref to the attached print for details, what is the meaning of JT 13 in a DIN print?
Thanks for all assists and comments.

SeasonLee

 

[pmarc]

Shouldn't it be IT13 - ISO standard tolerance grade?

http://files.engineering.com/getfil...a0f-4654-b4ee-4256bbc8618c&file=ISO_286_1.JPG

 

[SeasonLee]

Have you noticed the dimension line from center(axis)to center? what's that meaning?

SeasonLee

 

[pmarc]

Yes, I have noticed that, however can only guess its meaning.
If this is an attempt of limitting "concentricity" error of dia. 8 to an axis, it is a poor try, because the print says nothing about which feature serves as a datum feature.

 

[juergenwt]

I thing I would go back to the customer. This looks like a special - designed for their use only. On SW 4 - Schluesselweite 4mm Hex size 4mm - Ask for more info on that. Could be Torx or any other socket. Din 267 T2 and T13 give you a lot of gen. info. If not otherwise specified tol. are as per DIN 7168 as listed in box. Material is Stainless Steel. No Grade is specified.

 

[SeasonLee]

pmarc / juergenwt

Thanks for your comments and assists.

SeasonLee