bottom bracket parts

[zephyrblau]

for a double D crank I need the inner & outer threaded races (cones) & lock nut @ 20 TPI (the ones shown in the example are the wrong thread pitch)

for the coffin crank I need a lock nut @ 27 TPI

 

[fat tire trader]

I probably have the parts. If you want them you will need to bring your crank and go through my bin. I have some NOS ones that fit on my DD drive crank. I sent one to another caber and it did not fit on his DD crank.

 

[zephyrblau]

do you have calipers & a thread pitch guage ? if not, I can mail either or to you.

 

[ratdaddy]

I j

do you have calipers & a thread pitch guage ? if not, I can mail either or to you.

st did one of these.the small thread is 20 left the big thread was 22 right.I took them to machine shop and had them rethreaded.they work great

 

[fat tire trader]

Yes,

do you have calipers & a thread pitch guage ? if not, I can mail either or to you.

I do, I am a certified machinist.

 

[zephyrblau]

after another check my crank is as ratdaddy describes.
left side 20TPI
right side 22TPI

 

[zephyrblau]

found another DD crank w/ 20TPI cones on both sides

 

[zephyrblau]

still looking.
20 TPI cones
27 TPI lock nut

 

[zephyrblau]

found one set of 20TPI parts. looking for one more.