Ultra torque mystery?

on-yer-bike

Why would a UT bearing, non drive side be very stiff when fitted but perfect when removed from the spindle? I have refitted the bearing and it turns freely. Could the bearing have somehow been fitted wrong? What mistakes can be made when fitting a UT bearing?

nicklouse

the BB shell having not being faced. or the BB width out of tollerance.

But in both cases i would expect it to show on both bearings.

or are you talking prior to assembling on the bike?. so bearing pushed onto the arm and stub axel?
such as like here?

ugo.santalucia

Maybe it was fitted with inappropriate tools, hence not sitting properly?
It is not a difficult job, but as any job, it needs the correct tools. I have fitted a few with the Park Tool setup and never had problems

on-yer-bike

nicklouse wrote:

the BB shell having not being faced. or the BB width out of tollerance.

But in both cases i would expect it to show on both bearings.

or are you talking prior to assembling on the bike?. so bearing pushed onto the arm and stub axel?
such as like here?

Yes. Its a friends bike and after I removed the cranks the non drive side bearing was very hard to turn with my fingers. I removed the bearing and it was fine. I put it back on again and it is fine. I used the Park Tool. Could it have been on the wrong way round with the red face pointing in? Its reassembled now and spinning fine.

cycleclinic

Well if it's fine now there is not problem then. I prefer using the Cyclus Campag tools they do the job so well.