If the carriage is provided with a small head, the grinding wheel correction effect is better.
若能在拖板上装一小型动力头，采用砂轮磨削修正则效果更佳。
2
Through the drive axle housing , the tractive force, braking force and lateral force act on the wheel transfer to the suspension system, frame or carriage.
作用在驱动车轮上的牵引力、制动力和侧向力，也是经过桥壳传到悬挂及车架或者车厢上。
3
A scrolling wheelcarriage is supported by a PCB for greater stability.