Stepper motor stepper motor series line of mechanical transmission system has become an important target of high precision, return difference in general from the following five aspects. 1. Gear gap, mainly between the stepper motor and screw drive gear. 2. Join key especially the big gear on the screw, the gap a little gap on the back to the poor response is not ignored. Motor shaft key space is not only the influence of backlash, also with noise. 3. The gap between screw and wire mother, after they leave the screw for axial transmission gap usually at 0. Below 003, low quality of products is not guaranteed. 4. Screw bearing gap, the gap is live on the inner and outer ring of bearing axial adjustment to eliminate, but if the poor quality of the bearing, rolling after eliminating gaps is highly sensitive, once the rolling fast, and there was a gap, so its bearing is not casual. 5. Torque transmission overall poor rigidity, forming the weak parts of the flexible deformation make sports become slow lag, also reflected in the void way.
