| 摘要 |
A supporting member that carries at least 1 wheel and either rotates with the wheel to transmit mechanical power to and from it, and allows the wheel to rotate freely on it. The axle is an invention by itself and there is no prior art which has the axle attached to the housing. The axle and wheels can be removed and is therefore easier to ship. The axle can be used in a tricycle, trailer, caboose or any human or mechanical powered vehicle.
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