Difference between ND rear hub with "D" and without

[BankerRAt]

Guys what is the difference between a New Departure "D" rear hub and without the "D"?

 

[Slick Rick]

Thats a good question, I don't beleive I have seen one.Does it have a 1" pitch cog as well?

 

[BankerRAt]

yes

 

[Crassly]

I'm guessing it is a model "c" which should be designated by a "c" in a circle on the brake arm. Obviously "c" came before "d" but many of the parts are interchangable. If it isn't a "c" but is actually an unmarked "d", then I haven't a clue.

 

[sensor]

you pretty much nailed it crassly..im not sure about the model a's though(ive only seen one in person and that was awhile ago)
hope this helps....
http://www.nostalgic.net/pictures/673.htm

 

[Bendix]

you pretty much nailed it crassly..im not sure about the model a's though(ive only seen one in person and that was awhile ago)
hope this helps....
http://www.nostalgic.net/pictures/673.htm

man, the a's sure have cool brake arms!!

 

[BankerRAt]

Definately a "D" It was on a 50's JCH

 

[cashman]

After the New Departure model D was the Mattatuck model E. I Can't remember if the internals were the same as the D? Then there was the NK made in China. The NK's were similar to the D, but dimentionally different internally.

 

[skoda]

After the New Departure model D was the Mattatuck model E. I Can't remember if the internals were the same as the D? Then there was the NK made in China. The NK's were similar to the D, but dimentionally different internally.

If it's unmarked, but looks like a D and is from a 50's bike, there is almost zero different about them. No oil port in the casing and the shims are a little thicker, but they will interchange. The hardware on the lockring is a little different, but it all plays together fine.