The commutator of the DC motor refers to the rotating armature winding element, the process of changing the direction of the current in the element when it enters another branch through the brush from one branch. In the process of changing the direction of the current, a spark is generally generated between the brush and the commutator, which is the main cause of the commutator's problems and failures. Therefore, the scale divides the motor into several levels (1, 5/4, 3/2, 2, 3) according to the spark size when commutation. For continuous working DC motors, the commutator spark should not exceed 3/2. DC motors for electric bicycles are motors that work continuously and should meet the requirements of no more than 3/2 sparks. Standard delineation: When the spark is level 3/2, most or all of the brush edges have weak sparks, so there are black marks on the commutator, but it will not continue to develop. It can be removed by rubbing the surface with gasoline. There are slight burn marks on the brush, which will not affect the continuous normal operation of the motor.
Zhejiang Anrui Electric Appliance Co.Ltd. is a professional manufacturer of commutator (rotor) located in Yuyao city, Zhejiang province.
We have over 100 employees and have a complete product line with more than 200 kinds of production models, making us to be one of the most potential manufacturers of commutators in China.
We keep long-term and stable cooperative relationships with many famous electric machinery production enterprises in China.
With strict quality control，continuous technology innovation and equipment improvement, our products are widely recognized by our customers.
As a customer-centric and quality-oriented manufacturer, we will keep providing high-quality products and services. We look forward to the win-win cooperation with more global clients.