Brushless dc gear motor controller is composed of main body of the motor and drive, compact structure, small volume, has the outer characteristic of dc motor without mechanical contact structure composed of brush. So when bearing appeared what reason be? 1, because of the brushless dc motor speed controller with tight, bearing heating, have been pushed out to make grease, bearing the runway,Bearing face)There is no lubricating oil in the local, bearing bearing failures due to overheating. 2, operator afraid of car waste bearing chamber, brushless dc gear motor controller to make repair bearing outer ring and the end cover fit tolerance. Lay particular stress on the lower limit of the tolerance range, and not willing to limit, thus make the bearing chamber diameter smaller, increases the amount of interference with the bearing outer ring. 3, repairman to appropriately reduce the greater than the fit tolerance of surplus quantity of brushless dc gear motor controller of the understanding of the bearing to reduce noise is good enough, for example in the release bearing brushless dc gear motor controller may find bearing outer ring with end cover is very good, is mistaken for bearings with too loose. Tip: to learn more about brushless dc gear motor controller running defects, conditional can before disassembly when doing an inspection test. If still have what not understand, to welcome you all calls. Changes in: 2014. 1127
