the bearing will be seized into the hub carrier,if you are changing the discs then you don`t need to worry about damaging them.A sledge hammer would be your best option and they usually start moving pretty quickly alternating left and right onto the discs,when off remove the five 13mm bolts holding the disc on and clean up the inner bearing and hub faces with emery,when re assembling apply copaslip or a/seize grease and if it needs removing again it will come apart no problem,good luck.
cdc, April 2013
