Wheel hub oil slinging is generally caused by the following reasons:
The rear axle is filled with too much lubricating oil or grease, which flows through the inner hole of the half-shaft sleeve to the flange of the half-shaft, and leaks outward through the gasket of the sealing paper.
The axle shaft oil seal of the wheel hub is damaged, and the seal failure causes oil leakage.
The bearing goes inside or outside the circle, and the heat generated by friction makes the grease thinner, which causes the oil to be thrown out of the wheel hub.
The air vents in the rear axle housing are blocked, causing the temperature of the gears in the differential to rise, and the oil pressure increases, resulting in lubricating oil leakage.
The machining accuracy of the end face of the half shaft flange and the hub surface is not high, and the gasket is damaged, causing oil leakage.
The wheel hub bearing is adjusted too tightly or brakes frequently during driving, the temperature rises sharply, and the grease melts and is thrown out through the half shaft liner.
The front wheel hub bearing cap and the rear wheel axle shaft fixing bolts are loose or broken, causing oil tossing.
Preventive measures for wheel hub oil dumping include:
The quality and specifications of the oil seal meet the requirements, and it should be tight after being installed in place, and it is appropriate to have resistance when rotating by hand.
The rear axle is filled with lubricating oil according to the required capacity. The hub bearing adopts proper amount of lubrication, which means that the inside and outside of the bearing are evenly coated with grease, and no grease is added to the cavity of the hub. This not only facilitates heat dissipation of the wheel hub, reduces running resistance, but also saves grease and reduces economic expenses.
Frequently dredge and clean the vent holes and screw plugs on the rear axle housing to ensure that they are connected to the atmosphere and prevent the rear axle temperature and internal pressure from being too high.
Correctly install and adjust the tightness of the wheel hub bearing. After tightening the nut (the hub cannot be turned by hand), it is advisable to return 1/8-1/4 turn (the hub can be turned by hand but there is a sense of astringency).
Eliminate the inner circle and outer circle of the bearing. The method is to coat a layer of alloy on the outer seat ring or journal of the bearing; or use a sharp-mouthed bludgeon to punch out the pits on the bearing seat or journal, and replace the parts if necessary.
Replace the intact paper pad, complete and tighten the axle bolts.
In order to prevent the wheel hub from heating up and the grease becomes thin during frequent braking, water can be sprayed on the wheel hub to cool down or a water spray device can be installed.The copyright belongs to the author Website of China wheels .
