Thanks guy's, id never given it much thought until a few weeks ago, whilst i was watching a us airways a330 depart egcc i noticed that one of the wheels on the rear under carriage had a white line (painted)on it,as the gear was raised i could still see it spinning until it moved out of my line of sight.
which made me wonder if they stopped before they were fully retracted.
CON-PILOT.
it also got me thinking about how much gyroscopic force must be created by the gear at this point of take-off,and what effect if any it would have on the aircraft..
cheers ph.