BB question Cups to Cartridge

[DeletedUser006]

Morning All,

I am in a dilema where I need to replace bottom bracket from convensional cup and axle to a cartrige type :roll: .

The current BB is a shimano one which has pitted as they all seem to. The number on the axle is D-3NL and measures 123 accross. Its running in a 67mm frame.

Does anyone know which cartridge to to use to get the correct spacing. I can happily provide pics or more dims etc

cheers

 

[kram245]

Cant help with the exact cartridge, but had the same problem yesterday, changing because of pitted cones . Took my LBS 30 secnds to match up a suitable sealed cartridge. Width was 1mm short but as near as makes no difference. Depends on quality of LBS, though.

 

[DeletedUser006]

Thanks for this, I will try as last resort, would rather buy one online at a better price

 

[kram245]

Roger that Gravy, I paid £16.99 from the LBS, priced at £14.99 best price on-line, so not too much in it. Must say, was reluctant as I liked the thought of using original components.However, with the modern sealed unit, peddaling feels so smooth again, after putting up with a sub-standard BB for a while.

 

[Andy R]

I assume this is square taper ? If so Shimano UN72 (68x122mm) is a good choice (if you can find one, as they are discontinued).

I had a NOS one lying around here that you'd have been welcome to, but only a couple of days ago I gave it to a mate of mine for his Orange Prestige :roll: .

 

[DeletedUser006]

Thanks Andy, I will investigate, yea square taper for the Saracen project

cheers

 

[DeletedUser006]

Problem sorted, went to LBS and bought a BB-UN54 68 / 122 job done

I even stumbled on some reto gold there which has fitted my Saracen plan perfectly!

so not such a bad trip to the LBS after all