2, the two ears of the pin hole on the steering knuckle are connected with the fist part at both ends of the front axle through the kingpin, so that the front wheel can deflect around the kingpin at a certain Angle to make the car turn;

3. In order to reduce wear and tear, the bronze bushing is pressed into the pin hole of the steering knuckle. The lubrication of the bushing is lubrized by injecting grease into the nozzle installed on the steering knuckle.

4. In order to make the steering flexible, a bearing is installed between the lower ear of the steering knuckle and the fist part of the front shaft, and an adjustment gasket is also installed between the upper ear of the steering
knuckle and the fist part to adjust the clearance.