External BB bearings...

Jamie said:

Ok, I asked this earlier and I didn't get a response, so maybe it can't
be done?

sure it can

Quoted message said:

My question is can the bearings be replaced in the external BB type
cups, like ShimaNO DA? Has anyone done this? It seems they are just
press fitted in the cups?

Anyone?

http://velonews.com/galleries/OBBTOOLINST.pdf

dallas

Jamie said:

Ok, I asked this earlier and I didn't get a response, so maybe it
can't be done?

My question is can the bearings be replaced in the external BB type
cups, like ShimaNO DA? Has anyone done this? It seems they are just
press fitted in the cups?

Anyone?

Is anybody else concerned about the ease of stripping out/off the external
rounded tool-interface splines on the external BB shell? Why aren't these
squared off?
--
Phil, Squid-in-Training

2 reasons I can think of:

1. Easier to machine the semi-circle than squaring off.
2. Less chance of a stress riser.

cel

"Phil, Squid-in-Training" <[email hidden]> wrote in
message news:6u1_f.228$ZW3.78@dukeread04...

Quoted message said:

Jamie said:

Ok, I asked this earlier and I didn't get a response, so maybe it
can't be done?

My question is can the bearings be replaced in the external BB type
cups, like ShimaNO DA? Has anyone done this? It seems they are just
press fitted in the cups?

Anyone?

Is anybody else concerned about the ease of stripping out/off the external
rounded tool-interface splines on the external BB shell? Why aren't these
squared off?
--
Phil, Squid-in-Training

Quoted message said:

2 reasons I can think of:

1. Easier to machine the semi-circle than squaring off.
2. Less chance of a stress riser.

I highly doubt that the bottom bracket cups are machined.

They've been doing fine with Octalink outwardly radial tool cutouts... I
haven't heard of any failures of the BB cups. Granted, the external BBs
have more torque on them since they're further from the centerline of the
bike, but I think the spindle would have more of the force to contend with.

--
Phil, Squid-in-Training

Jamie said:

Ok, I asked this earlier and I didn't get a response, so maybe it can't
be done?

My question is can the bearings be replaced in the external BB type
cups, like ShimaNO DA? Has anyone done this? It seems they are just
press fitted in the cups?

Anyone?

yes they can with far superior Phil bearings. Phil also has a tool kit
to do same. For truvativ, shimano and FSA BBs...

Phil said:

Jamie said:

Ok, I asked this earlier and I didn't get a response, so maybe it
can't be done?

My question is can the bearings be replaced in the external BB type
cups, like ShimaNO DA? Has anyone done this? It seems they are just
press fitted in the cups?

Anyone?

Is anybody else concerned about the ease of stripping out/off the external
rounded tool-interface splines on the external BB shell? Why aren't these
squared off?
--
Phil, Squid-in-Training

No, use the right tool, like the park one or XTR/DA one.

Jamie said:

Ok, I asked this earlier and I didn't get a response, so maybe it can't
be done?

My question is can the bearings be replaced in the external BB type
cups, like ShimaNO DA? Has anyone done this? It seems they are just
press fitted in the cups?

Anyone?

Thanks to everyone for the input! Great info...I just knew someone had
to make a tool to do that! Sweet.