Feature Description:

• Low noise
• Speed adjustable
• Long life characteristics
• High step angle accuracy

The specification of stepper motor:

The dimension and wiring of stepper:

Application of stepper motor :

Linear Stepper motors are widely used in manufacturing, precision calibration, precision fluid measurement, precise position, and many other areas of precision requirements.

The theory of lead screw linear stepper motor:

The rotary motion of a stepper motor can be converted into linear motion by several mechanical means. These include rack & pinion, belt and pulleys and other mechanical linkages. All of these options require various external mechanical components. The most effective way to accomplish this conversion is within the motor itself.

Conversion of rotary to linear motion inside a linear actuator is accomplished through a threaded nut and leadscrew. The inside of the rotor is threaded and the shaft is replaced by a lead screw. In order to generate linear motion the lead screw must be prevented from rotating. As the rotor turns the internal threads engage the lead screw resulting in linear motion. Changing the direction of rotation reverses the direction of linear motion. The basic construction of a linear actuator is illustrated in figure 001.

Figure 001. Linear actuator cut away showing threaded rotor to leadscrew interface.

  The basic principle of linear stepper motor is the use of a screw and a nut to engage and take some way to prevent relative rotation of the screw nut, so that axial movement of the screw. Generally, there are two ways to achieve this transformation, the first (non-captive) is built in the motor rotor with a female thread to the internal thread and the screw rotor engagement and achieve a linear motion, the second kind (external-driven) is screw as the motor output shaft, the motor externally via an external drive nut and screw engaged in order to achieve linear motion. The result is a greatly simplifies the design, making the many applications can not install external mechanical linkage used directly in the case of linear stepper motors for precision linear motion.
     Compared with the screw, the screw nut driver even more important, the linear stepping motor is used internally threaded bronze molding rotor, which took into account the physical stability and lubricating properties of the patented product, at the same time having a low friction coefficient and there are quite excellent thermal expansion properties. Two aspects of the excellent performance of the linear stepper motor to ensure high life.

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