There is an intermediate axle between the powered axle and and the axle with flanged wheels. On this intermediate axle, there are idler rubber wheels which engage the truck's powered wheels. Then, the axle with the flanged wheel also has rubber wheels which engage the rubber idler wheels. The idler wheels, of course, are turning in the opposite direction from the powered wheels and the rubber wheels on the axle containing the flanged wheels. Anyway, here is a photo.
It took them a while to figure out how to prevent the rubber of the idler wheels and the rubber wheels on the axle with flanged wheels from overheating and starting to soften or melt. The solution was to put grooves in the idler wheels and the rubber wheels on the axle containing the flanged wheels. These grooves worked like a charm and kept the rubber from getting hot or soft.