Originally Posted by
TimothyH
I'm sorry for being obtuse but are the cartridges replaceable? Do they require maintenance?
I'm asking because Shimano's Dura Ace track bottom bracket is advertised as "Sealed Cartridge" but it really isn't. It has dust seals and the bearings are in a plastic carrier "cartridge" for ease of installation but it isn't a true sealed cartridge. The fact that they print the words "Sealed Cartridge" on it don't make it any more so.
A square taper? All cartridge bearings
can be disassembled, they just aren't meant to be. Inside the cartridge (inner and outer races) the balls are are kept in a plastic spacer/retainer. And the unit has a dust seal pressed in. Is that what you are talking about?
So the Record Pista is maintenance free - install and forget until the bearings go bad?
-Tim-
As far as I know, yes.
What crank is this for? Is it ISO? Why do you want to spend $125.00 on a bottom bracket?