Car rear wheel bearing damage condition, reasons and test

With the development of The Times, the driver is more and more, and the bearing is also important auto parts, such as car wheels, launched on the use of all bearing, drive not necessarily understand parts damaged condition, we together to see some knowledge about car wheel bearing. There is a car driver to the mechanic said: 'the vehicle after the start, when the stillness is very normal, but the vehicle once you start moving, noise will be much more, especially when accelerating noise is particularly evident, the faster the speed, the greater the noise, noisy person have a headache, launch machine is out of weakness? 'Not all yes. After mechanic test, it is concluded that: vehicle launched machine, the gearbox is normal, found a damaged car rear wheel bearing. Aiming at this phenomenon, the bearing performance network sharing the damage of the automobile rear wheel bearing conditions, and the cause of bearing damage, and how we can check is the wheel bearing damage some knowledge, hope that I might be of some assistance, broad car friends to travel safely, vehicle if there are any shortcomings we found as early as possible, timely treatment. The performance of the automobile rear wheel bearing is broken form different ring, is the main performance of the automobile rear wheel bearing is broken. Judging whether car rear wheel bearing is broken, can slide after the car speed to neutral state, if the buzzing sound did not change, so is the rear wheel bearing is broken. If is bad, will produce a lot of heat, to the car after a period of time, parked by the side of the road, with the hand to touch feeling the wheel axles, them can sense the temperature significantly higher than the normal temperature. One more thing, is the speed faster, can sense vibrations by foot have close feeling. From several car rear wheel bearing damage reason: the breakage of the parts rust, have a foreign body into the deflection or escalator formation damage, and acid liquid and residual moisture for a long time, also can form parts of rust. Smooth bad, if the roll body and smooth between lack of grease, both can produce dry friction, which produces metal friction sound. Interval. Between automobile components and parts are appropriate clearance, and when the roll body and the gap between the roller table once small, easily friction heat, provoked bearing sintering. Testing on automobile wheel bearing, in fact is not complicated. The first step is to use lifting machine to lift the vehicle, dangling the wheel and loosen the hand brake; The second step is to detect the drive wheels, can be manually by arrive slow fast rotating wheels, check the bearing whether noise; The third step, when the test drive wheels, launch vehicle wheelspin, check the bearing whether there are extra noise. Still have a kind of special situation needs pay attention to, some bearing trouble alone tyre idling is to listen to not to come out, need the car fell on air, make bearing pressure, ability to make a precise criterion.