Shimano UN55 into Steel BB Shell.

[JackRabbitSlims]

I would / should post this in Workshop and Maintenance.....but it's a ghost town in there....cold and dark...no one home

OK - so I have the bog standard Shimano UN55 Square Taper BB going into a steel frame BB shell (Touring Bike)

This guy - http://www.chainreactioncycles.com/nz/en/shimano-un55-square-taper-bottom-bracket/rp-prod71369

Two Questions: -
1) The non drive side is plastic....can you get a metal / stronger alternative?
2) Grease or Lock Tight and then torque to spec.....which one please?

Cheers.

 

[avanti]

I would / should post this in Workshop and Maintenance.....but it's a ghost town in there....cold and dark...no one home

OK - so I have the bog standard Shimano UN55 Square Taper BB going into a steel frame BB shell (Touring Bike)

This guy - http://www.chainreactioncycles.com/nz/en/shimano-un55-square-taper-bottom-bracket/rp-prod71369

Two Questions: -
1) The non drive side is plastic....can you get a metal / stronger alternative?
2) Grease or Lock Tight and then torque to spec.....which one please?

Cheers.

I'm surprised that plastic is used.

The Park Tool website has some info:
http://www.parktool.com/blog/repair-help/

 

[JackRabbitSlims]

I would / should post this in Workshop and Maintenance.....but it's a ghost town in there....cold and dark...no one home

OK - so I have the bog standard Shimano UN55 Square Taper BB going into a steel frame BB shell (Touring Bike)

This guy - http://www.chainreactioncycles.com/nz/en/shimano-un55-square-taper-bottom-bracket/rp-prod71369

Two Questions: -
1) The non drive side is plastic....can you get a metal / stronger alternative?
2) Grease or Lock Tight and then torque to spec.....which one please?

Cheers.

I'm surprised that plastic is used.

The Park Tool website has some info:
http://www.parktool.com/blog/repair-help/

Thanks.

I've installed quite a few of these in my time...usually just grease and torque to spec etc.

I should have been more clear.....this is for my touring bike - looking for rock solid longevity and durability.
I'm OK with the plastic piece, but if I can find a stronger alternative, I'll take it.

I don't usually loctite these guys in, but wondering if some 242 would be a good idea, or just stay with grease?

 

[Bustedknuckle]

I would / should post this in Workshop and Maintenance.....but it's a ghost town in there....cold and dark...no one home

OK - so I have the bog standard Shimano UN55 Square Taper BB going into a steel frame BB shell (Touring Bike)

This guy - http://www.chainreactioncycles.com/nz/en/shimano-un55-square-taper-bottom-bracket/rp-prod71369

Two Questions: -
1) The non drive side is plastic....can you get a metal / stronger alternative?
2) Grease or Lock Tight and then torque to spec.....which one please?

Cheers.

1)..yes, find a decent LBS that has some toasted UN series BBs in the 'box out back'.
2)Grease, never 'glue'...also grease inside LH cup.

 

[JackRabbitSlims]

Thanks Busted.

 

[Lynton]

From memory the ultegra spec of the same year had a metal non drive side cup. Looking at the pic of the time in your link it is a metal cup.

 

[JackRabbitSlims]

Thanks Lynton - I'll start hunting down a metal non drive side cup soon.

The link I posted is of the UN55 and it most definitely has a plastic non drive side screw in cup.....which is what I'm trying to replace.

Cheers.