Technical & Reference Section > Tech and Restoration

NS - sealed bearing advice needed

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bof:
I may be wrong but I doubt that they are sealed bearing hubs , You will find they are normal open bearing cones and locknut with a rubber seal covering them up . In other words you need to tighten up your cones , job done. :daumenhoch:

chi11i:
Thanks all. Def sealed, def press fit. Just had it apart. The two lock nuts were tight on each side and there's still about half a mm play - which aint a lot i know until you start banging the front around on the ground - perhaps my learning 180 hops hasn't helped ;)

Oddly, after putting it together again - i couldnt feel the play when lofting and dropping the front when riding, but i can feel it by hand! anyhow, will see how it goes. im used to building my own wheels for mtb/dirt and im quite critical of machine made ones generally (the front wheel is also not dished proper either) but never had press fit bearing wobbling before.

One last question - do people actually fit those 'safety' drop out washers (dont know what they a properly called) that hook over the slot in the drop out? the ones supplied with the fit are huge and dead ugly, so i left them off - just wondered - im not that paranoid about the front wheel dropping out. i see they are not on the pics on fits website - but then neither is the next to useless 'legal' front caliper.

TwoBobRob:
I'm slightly confused now...  where is the play?  at the axle/bearing or at the bearing/hub?

harris:
yep sounds like over machining    it cant rearly be fixed   replacement needed.
if it was axle to bearing id  od  then still it would need to be a good good almost airtight gap minimum.

chi11i:
bearing/hub is where the play is - not axle. sorry my rambling there was a bit unclear wasn't it. its lateral play not radial so as you suggested hub shell prob machined out a gnats too deep.

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