Stepper motors offer excellent controllability, making them a popular drive source for various automated equipment. When combined with ball screws, stepper motors convert rotary motion into linear motion or torque into reciprocating axial force, while also offering high efficiency, high precision, high rigidity, and long lifespan. Consequently, ball screw stepper motors are widely used in various precision instruments, electronic equipment, and CNC machine tools.
High transmission efficiency
The ball screw transmission efficiency of MOONS' linear stepper motor is as high as 90% or more. The torque required to convert rotary motion into linear motion is only 1/3 or even less of that of a conventional threaded screw.
Minimal axial clearance, high precision, and high rigidity
The ball screws in MOONS' linear stepper motors feature Gothic grooves, resulting in minimal axial backlash and allowing the nut to run easily and smoothly. Applying appropriate preload can further reduce axial backlash and increase the rigidity of the ball screw.
High hardness and long lifespan
The ball screws in MOONS' linear stepper motors have sufficient rigidity to ensure excellent durability. The ball screws are generally composed of the materials shown in the table on the right, and the steel is heat-treated to control its hardness to HRC58° or higher.
