The spindle is retained by 3 or 4 bolts (depending on model) from underneath.
There is every chance they will shear off when you try to unscrew them, but the spindle has to be replaced as an assembly anyway, so not a problem - but you will need some new bolts. Bearing replacement is a machine shop job.
phil_saunders@bigfoot.com
Phil Saunders, July 2008