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汽车在运行中,前轴的主销孔由于经常受到主销变动的高频率的侧向挤压(摆动).致使主销孔尺寸扩大(形成上下口径大,而中部尺寸较小的喇叭形状)见图1.主销的摆动又使主销与转向节铜套的装配间隙、转向节主销孔端面与前轴上下端面的装配间隙增大,致使转向节平面止推轴承各部位受力不均而早期损
When the car is running, the king pin hole of the front axle is often squeezed (wiggled) frequently due to high frequency changes of the king pin, causing the king pin hole to be enlarged in size (forming a trumpet shape with a large upper and lower caliber and a smaller middle size) See Figure 1. The swing of the kingpin also makes the kingpin and knuckle brass sleeve assembly gap, knuckle kingpin hole end face and the assembly of the upper and lower front-end clearance increases, resulting in all parts of the knuckle plane thrust bearing force Both early damage