I've taken apart my bottom bracket, it is a Sugino GT. When I took it apart I expected to find ball bearings in a bracket, instead what I found was loose ball bearings. I'm not sure if they were placed in there loose or if the bracket had eroded away. I expected to find some grease too, but that was in very short supply.o

After looking at the spindle i'd like to replace that along with new bearings. One of my many issues is I'm not sure what size of spindle to use or how to measure it. Is it over all lenghth?

On the current spindle it says "3rrb", "83-k", and "Cr-Mo". It is square taper.

On the bearing cup/cap for lack of better term is states Sugino 1.27x24T.


It came out of an old MTB, that I want to use for commuting. It has a triple crank.

Any recommendations on what I should replace it with?

thanks

Sheldon shows 113 - 118 mm, nothing seems to measure this. The overall length is 136 mm.

The spindle below has the same appearance as mine without the threads on the end of the spindle.