Dc motor controller of bearing heating

Dc motor controller in the use of bearing heating in many reasons, such as using aspects, dc motor itself, the assembly process and so on. Below small make up say why using aspects. 1. Due to the dc motor controller is improperly installed, such as motor controller axis and drag the device not on the same axis degrees. 2. Due to the bearing maintenance work does not reach the designated position, grease and lasts more than wait for a reason. 3. Because the pull of the pulley is too tight. Above is the cause of dc motor controller bearing heating analysis, hope to help you.