Funnily enough, I've *just* done both my front bearings (along with the discs - since they'd delaminated with rust). You need no special tools, simply undo the stubaxle nut, pull the hub off. There's enough 'land' on the inside of each bearing track within the hub to chisel the things out. New tracks went in very smoothly with a socket and a lump hammer. Getting the oil seals in square was the biggest challenge, after many, many attempts I took a beer break, came back to it and they went in smoothly 1st try with a 40-something socket.
Beer was a pint of Hicks 'HSD', slightly below ambient temperature, left to stand for 10-15 minutes to de-aerate.