When we are in use step progress motor, sometimes produces shaft current. What is the shaft current? Simply put, motor shaft and bearing seat at the base of the current in the circuit is called the shaft current. About the cause of shaft current motor, there are the following: 1, have a harmonic current; 2, may be due to the asymmetry of magnetic field of the motor, the centrifugal force; 3, because the motor is the turbulence, detachable thin seam between the two semicircle of the stator iron core; 4, may be the choice of the stator core of a few spelling number is not appropriate. These seemingly insignificant details, will produce great harm. For example, make motor bearing surface erosion, which creates a bearing operating performance deterioration, such as friction heat generating principle is caused by the wear, motor will ultimately make the bearings burned. At work, how to do prevention of shaft current. First of all, can eliminate the power harmonic to achieve the purpose of prevention, second, is in the production of motor, must notice to insulation details, will base and bearing insulation, end cover and the outer insulation of rolling bearings. Shenzhen products are done it very well, welcome to shenzhen, Shanghai four macro company to buy step progress motor. the main products: stepper motor, brushless motor, servo motor, stepping motor drive, brake motor, linear motor and other kinds of models of the stepper motor, welcome to inquire. Telephone:
