Scroll wheel rubber strip detachment

The rubber friction strip on the scroll wheel of my Microsoft 4000 wireless mouse has broken free from the inner hard plastic hub. It has stretched to the point that I do not believe it could be re-attached and still work smoothly. I am asking if a replacement wheel unit is available? I am also considering cutting the rubber ring, remove the stretched excess, and then gluing it back on the hub. Thoughts? Alternate suggestions?

Solution 1:

Old question, but in case anyone runs across this, just cut the rubber part off the wheel by lifting gently and cutting with a knife or nail clippers, mouse still works fine (it works optically not by friction)