After aligning the outer bearing of wheel yi, screw in the bearing adjusting nut while turning wheel yi until it feels tight when turning wheel yi by hand, then turn the adjusting nut back to 1/6- 1/4 turns, and then tighten the lock nut.

When adjusting the tightness of the steering wheel bearing, it is necessary to tighten the adjusting nut first, and conduct the test with a pulling force of 200-300 N. When the wheel can just be pulled to rotate, stop screwing in the nut, turn the wheel left and right for 2-3 turns, and then loosen the adjusting nut until the wheel can be pulled to rotate with a force of10-25 N. ..

Because the hub bearing is very close to the ground and high-temperature brake disc, it needs to adapt to all kinds of complicated road conditions and harsh driving environment. Therefore, the bearing sealing ring must have good oil leakage resistance, as well as good heat resistance, mud resistance and sewage resistance.

Extended data:

If you hear the noise from the hub bearing, first of all, it is important to find the location where the noise occurs. There are many moving parts that may produce noise, or some rotating parts may come into contact with non-rotating parts. If noise is confirmed in the bearing, the bearing may be damaged and needs to be replaced.

Because the front hub leads to the failure of bearings on both sides, even if only one bearing is broken, it is recommended to replace it in pairs.

Unsealed bearings, such as double-row tapered roller bearings, must be lubricated with grease during installation. It is difficult to determine how much grease to add because of the different sizes of bearing cavities. The most important thing is to ensure that there is grease in the bearing. If there is too much grease, when the bearing rotates, the excess grease will seep out.

Baidu encyclopedia-hub bearings

Baidu encyclopedia -Hub