Nema17 Gear Box Type Stepper Motor 1.8 Degree Hybrid Stepper Motor
Description of Gear Box Stepper Motor
1. Forward/Reverse Rotation,Pause and Hold
The forward /reverse rotation of the stepping motor can be controlled by the input sequence of the controlled electric pulses.
In the case of the a stepping motor lock(the motor winding is energized,there is no external electric pulse command),the stepping motor can still maintain a certain torque output.
2. Longer Life
Stepping motor is a mechanical structure,which does not need be changed by electric brush or Hall sensor,thus reducing the probability and increasing the motor life.Stepping motor life usually determined by the life of the bearing.
3. Accurate position Control
The angular displacement of the stepping motor can be precise controlled by the number of electrical pulses.Angle accuracy can be controlled within ±0.09°without any feedback devices.
4. Strictly control the production of parts to improve the quality of parts.
5. Accurate Speed Control
The rotational speed of the stepping motor can be precisely controlled ,By controlling the frequency of the electric pulse.
| Number of phase | 2 |
| Basic step Angle | 1.8 degree |
| Rated Current | 1.2A |
| Resistance | 2.1ohm |
| Inductance | 3.9mH |
| Holding Torque | 0.25N.m |
| Weight | 0.24kg |
| ReductionStage | Reduction Ratio | Ratio Absolute | Rated Torque | Ultimate Torque | Efficiency | L2mm |
| 1 | 3.7 | 3.7 | 2N.m | 6N.m | 90% | 30.6 |
| 2 | 10.2 | 10.2 | 6N.m | 18N.m | 81% | 42 |
| 13.7 | 13.7 |
| 19.2 | 19.2 |
| 3 | 32.5 | 32.5 | 12N.m | 36N.m | 73% | 53.2 |
| 50.9 | 50.9 |
| 71.2 | 71.2
|
Gear Box Stepper Motor 's specifications
- Stepping Accuracy: ± 5%
- Resistance Accuracy: ± 10%
- Inductance Accuracy: ± 20%
- Temperature Rise: 80°C Max.
- Ambient Temperature: -20°C ... +50°C
- Insulation Resistance: 100MOhm min. 500V DC
- Withstand: 500V AC, 1 Minute
Working principle of Gear Box Stepper Motor
To make the motor shaft turn, first one electromagnet is given power, which makes the gear’s teeth magnetically attracted to the electromagnet’s teeth. The point when the gear’s teeth are thus aligned to the first electromagnet, they are slightly offset from the next electromagnet. So when the next electromagnet is turned ON and the first is turned OFF, the gear rotates slightly to align with the next one and from there the process is repeated. Each of those slight rotations is called a step, with an integer number of steps making a full rotation. In that way, the motor can be turned by a precise. Stepper motor doesn’t rotate continuously, they rotate in steps. There are 4 coils with a 90o angle between each other fixed on the stator. The stepper motor connections are determined by the way the coils are interconnected. In a stepper motor, the coils are not connected. The motor has a 90o rotation step with the coils being energized in a cyclic order, determining the shaft rotation direction. The working of this motor is shown by operating the switch. The coils are activated in series in 1-sec intervals. The shaft rotates 90o each time the next coil is activated. Its low-speed torque will vary directly with current.
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SGS Nema 17 2A 1.8 Degree 35mm Gear Stepper Motor Images
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