Square Taper Crankset: The Ultimate Guide (Remove and Install)
When the bearings begin to fail, remove the cartridge and install a new one. You do find square taper bottom bracket setups where the spindle rotates courtesy of a cup and cone with bearings in a race. And yes, this is a spindle since it "spins" —an axle, on the other hand, is fixed with the bearings rotating around it.
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