rattle from drum (beko wm1510w)?

My Beko WM1510W is working fine except for one thing when the drum spins there is an almighty rattle from somewhere inside. I have taken the back and top off, there is no extra movement in the machine,other than this rattle. I believe it might be the bearing, can anyone help?
Austin, November 2008
bra wire under drum?.front bottom concrete weight loose?.bearings like you say

ck, November 2008
link Click here to see other fixes for Beko.