| 摘要 |
A railcar running gear or a wheel unit for railcars with at least two essentially parallel axles with two wheels on each axle is provided for, of which the front two wheels have a roll surface touching the rail that is slightly tapered so that the smaller diameter of the roll surface is located at the outside and the larger diameter of the roll surface is located at the inside of the wheel, and the rear two wheels have a roll surface touching the rail that is slightly tapered so that the smaller diameter of the roll surface is located at the inside and the larger diameter of the roll surface is located at the outside of the wheel.
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