Electric cars bearing maintenance and replacement of skills - bearing knowledge

Bearing for electric cars is equivalent to the joint to the us, in the process of electric driving, whether or not bearing the safety factor of the associated security greatly when we ride. For electric vehicles, the bigger the power also requires that the higher the degree of the safety of the bearing, the drive if damaged or use non-standard bearings of an accident, must be repaired in time, because this relationship to our ride in late life. Electric cars bearing is an important component of the electric vehicle. Its main function is to support the mechanical rotator, reduce the coefficient of friction in the process of the movement, and guarantee its rotation accuracy. By the frictional properties of motion elements, bearing can be divided into two categories, the rolling bearing and sliding bearing. The rolling bearing is standardization, seriation, but compared with sliding bearing radial size of it, the vibration and noise is bigger, the price is higher also. Bearing damage: 1, the bearing itself quality problem, rigidity is not up to standard, material with poorly! 2, bearing bare bad water easily, such as the front wheel on the right side of the bearing; Motor end cover closed without brake bearing) With oil seal is damaged, the water bearing inner butter wash off, lead to bad lubrication and rust, increasing friction bearing worn 'apart'. 3, such as shock hit or wheel shaft rod hardness is not enough to bending deformation, can make the bearing bias force in the process of operation, will be 'inner circle' and grinding 'outer circle', make the uneven bearing force and damage! 4, bearing hole machining accuracy is not precise circle, bearing a slight deformation, running friction increases, leading to premature bearing wear 'fighting'! Bearing in the case of excessive damage, the wheel will tilt, which in turn caused the vehicle run in driving process partial, this is because the bearing in a certain direction of weakened, caused the electric vehicles is difficult to handle in the process of driving direction. Serious point will probably be a wheel, if the vehicle is in a state of high speed the consequence will be unimaginable, so in a timely manner to replace the damaged bearing is very necessary. Change the note: 1, check the end cover change of bearing oil seal, if oil seal closed please give change along with all the bad! 2, the factory bearing lubricating oil with little or no oil inside, please add lubricating oil bearing oil seal pry open properly! 3, if the bearing hole loose this kind of problems, for security reasons, to deal with circle or the motor end cover for replacement! 4, bearing installed, please send the wheel impending, check whether the wheel running flexible smooth, with or without demanding or card lag phenomenon, if any, may be bearing no in place, please reinstall. Or you will sweep don, running is not flexible, forced by bearing on 'paralysis' again soon! 5, and inform the customer as far as possible not to have water cycling, in order to avoid water rust. Electric cars bearing moved after a long time, it is easy to damage, not being of turning, turning sound, more for the bearing pressure, repair as soon as possible to avoid small problem into a big failure.