Outrageous fortune! Tire drops of who? In addition to excessive bearing preload, wheel hub bearing should be paid attention to what?

In December 2019, there are a little out of the fire video instant, a 'big truck tires in the falling out of the car, half the body embedded bridge' video, fortunately, the white car driver only minor bruises, and not life threatening, but cars are not so lucky, windshield and dashboard are severely damaged. Car in the process of driving wheel run away, although it is a small probability event, but it is often happened. If anyone, will have a series of troubling questions. In home of truck BBS, there are many CARDS friend seen or met tire yourself fall phenomenon. Fall that appear this kind of tyre is the likely cause of the phenomenon of what? Friends card master li's car was almost met this kind of problem. In June this year, master li found the car wheel has a sound, then into the factory maintenance. Master maintenance overhaul after found that one of the wheel hub bearing inside have serious wear and tear apart, wheel hub has been worn away cylindrical, grease by high temperature evaporation, basic can say almost wheels ran away. 'The last time you maintain wheel, bearing pre-tightening overdone' repair the master said, 'once the bearing pre-tightening excessive, can cause bearing movement produced high temperature resistance is too high, over time, can make the grease evaporate, make dry mill bearing, bearing damage, eventually lead to bearing wheel apart from the body. 'In addition to the excessive bearing preload, wheel hub bearing should also pay attention to what? Repair the master said, at the time of maintenance of wheel hub bearing, the choice of grease is also very important, according to their own conditions, working status, environmental conditions, such as to select the suitable grease, if you choose to not appropriate, also can cause damage of wheel hub bearing. What reason can cause tire crash accident? Again, not only the bearing pre-tightening overheating will cause tire, tire screw loose also can lead to the accident of a wheel. When one tire screw loose not discovered, with the operation of the vehicle, the screws will be more and more loose, and drive the other tires on the tyre loose, then loose the connection between the tires and axles, gradually will cause the tire is not straight line movement, will soon be broken tire screw, steel ring damage, serious and even cause a wheel of accident, a serious threat to safety. Tyre loose screw is hidden even serious each tire screw is a check, also not easy to find a tire screw is loose, tyre loose and did not found, the naked eye can see loose, basically all started out of the question. In one of the most common six axle semi-trailer, for example, a car is 120 tires screws, even serious drivers, to do every year A check to, don't miss a single screw is not reality, and inspection of the time in a hurry. So, the owner must to conduct regular inspection and maintenance, especially the large trucks, vans, etc. , to ensure that the motion of the vehicle safety.