I bet you guys know this, but I just figured it out for myself.
I always wondered what happens with the wheels after the plane lifts off. Your screamin down the runway, and after you lift off, the wheels have got to be spinning pretty damn fast. As the gear goes up into the doors, I found out the pilot taps the breaks and stops the wheels from spinning as it goes into the bay. The nose gear however keeps spinning and is stopped as it enters the bay. Know how I found this out?.....
Today at work, I went up to one of our 737's (I work for SW ramp) and the rim-cover on our wheels as most of you know is orange like the bottom of our jets. Usually though, those covers are caked over with break-dust and grime so some of them are almost black. Well I took a cloth, and made a big spiral in the center of the wheel in the grime. After I pushed the plane (it was tail 797MX) I took my tug and sorta followed it down about half way down the runway. After he took off, he went right in front of me and I saw my spiral spinning violently on the wheel, then it stopped and the wheels went up. Cool huh? Anyways, look for 797 out there.