Bottom Bracket Spindle Question
 

I have a few different bottom bracket spindles. I'm not too sure what they'll be good for, and/or their suggested use.

Also, I'm wondering their orgin, who made them and the country.

Thank you.

The first spindle is labeled "YST-7NL" and "CR-VD"

The second is "3RR-B", "Cr-Mo" and "K-3"



I also have a KoR bottom bracket 1.37x24. What I am wondering about this bottom bracket is what it was originally used for.

I have a SKF sealed cartridge bottom bracket that has "BSA" stamped on the left side. Stamped THUN 1.37x24. What's up with this one as well?

This might help. Don't throw them away; they're getting harder to find.

1.37 x 24 indicates standard British thread. That's the most common.

7NL is for a 73MM shell.
Spindle is 122MM long, with 1 end 1MM longer than the opposite.
CR-VD Chrome-vanadium steel????

3RR B is for a 68 MM shell and has a 136MM symmetrical spindle. B is for BOLT.

Thank you.
 

Thank you for your response, this was great help.

JYPC - If you want to sell the YST-7nl axle, try letting the folks on the folder forum know about it. I believe that is the axle that will work on the Raleigh Twenty, a folder that is popular for being rebuilt.

Thank you.
 

I have about 10 NOS of those spindles, and I was wondering about just that.

Now which folder would I post in to list the purchase of parts; that being NOS, new or used.

Post to the Folding Bikes forum at this link:

http://www.bikeforums.net/forumdisplay.php?f=221

Thank you again.