Front wheel shimmy is the phenomenon that steering wheels vibrate around king-pin axis with a certain amplitude and frequency when the vehicle travels in a straight road.
前轮摆振是指汽车在平坦的路面上直线行驶时，转向轮以一定的幅度和频率绕主销持续振动的现象。
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It consists of steering wheel steering shaft worm gear sector pitman arm drag link steering knuckle arm king pinsteering arms tie rod front axle and steering knuckle.