I was on a LATAM flight a couple days ago, and decided to have a read through their VAMOS magazine. As a lot of airlines do, they had a couple of pages on their fleet, and also a double spread on one specific plane.
This plane was the 777, which was a little bit surprising as they are about to get rid of those I think. Anyway, it had all the usual facts and figures, and also a couple of highlights about the plane.
I managed to find a web copy of the magazine, and the picture is below:
One of these highlights is the wheels, and it says (roughly translated):
Each of the wheels is capable of supporting a maximum of 29,294 kg.
My first reaction was "That's pretty impressive!", then "I wonder how much above the MTOW that is?" The MTOW is specified at the side there: 351,530 kg, which correspondes to the 777-300ER.
So 29,294 x 6 x 2 = 351,528
Oh. That's under the MTOW. I wonder if there's some rounding off here:
So 351,530 / 2 / 6 = 29,294.166 - yes there is.
I was surprised that the maximum each tyre/wheel could take summed up to the MTOW, as I thought that they would experience larger forces on landing. Also, what would happen if a tyre blew?
So, does the maximum load for a tyre/wheel have anything to do with the MTOW? Or is this just marketing guys jumping the gun?
I have seen this question How is Maximum Take Off Weight determined? and that says that the manufacturers determine it, and it is based on the required payload of the aircraft and the design configuration, which doesn't really answer this question.
Edit with extra info mentioned in comments:
When stationary, the wheels will have a total force on them of 351,530 kgs, which according to this magazine is their max. When landing, the wheel like have to bear a weight of 251,290 kgs, plus the force of the landing. In my mind, the extra force of the landing would push the total above the MTOW, but this is just in my mind so I'm probably wrong :P