Why electric cars bearing always bad?

The author, most recently on the Internet to meet a net friend, he said: 'I three-wheeled electric vehicle front wheel bearing is always bad, changed even three times, or not, how did this happen? 'Aiming at this problem, the 崋 bearing network according to the bearing comprehensive knowledge, to analyze, and share the reasons for problems, hope for network who have certain help. Why three rounds of electric vehicles bearing the old bad? When our electric car bearing is broken, we will choose to repair shop in bearing, general maintenance master will give you in the ordinary bearing on market, the cost of such a bearing has two or three yuan, if we buy it four or five yuan, electric cars bearing maintenance maintenance down 20 or 30 yuan. Such a plain bearing with luck with gears, is bad, a few months is not dying. Also has good bearing, bearing a good point to 10 yuan of cost, if the master maintenance to the customer in good bearing, fees need forty or fifty, the average person will feel very expensive, will accept. Go with the flow, so a lot of maintenance teacher will give us the plain bearing, in the so-called a price points a goods, bearing the old bad, depends on our choice. In order to let us have a good way, we can go to buy a good bearing on market is more than ten dollars. Will to change myself and will solve. In order to make everyone better in bearing, bearing 崋 bearing network share, the electric car bearing dismantling steps. Electric car front wheel bearing replacement steps: 1, the first things we use to support electric cars get, let the electric car front suspension. As shown in the figure below ( Here is to use the bench support) : 2, and then using a wrench nut down, had better use ratchet wrench on the hand, because of the open end may twist. Screw the nut, remove the tire would be easier. 3, down can remove the damaged bearings, usually with hollow tube on damaged bearing and the bearing outer ring, note: two bearings are knocked out, whether damage to one or two, we will replace two bearing with the new. After 4, on bearing, be sure to clean inside the wheel, when we knock out bad bearings, wheel may have internal steel slag, so it must be clean, to install the new bearing. 5, install the new bearing, install the new bearing to put some butter on the bearing, will be easier to install. Note that installed side bearings, the locating stud, again this side of the bearing installation, installed after put the seal on both sides of the press. 6, and the wheel and brake disc for first, with the screw is fixed, the other brake discs have a card slot to card. 7, on the other side there is a small iron must not forget, ill, then put the screw nut and tighten,'re done.