Changzhou Vic-Tech Motor Technology Co., Ltd.
Motor Manufacturer，Rreliable Quality， Price Concessions
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Various gear ratio 20BY45-20G 20mm 18° step angle stepper motor with gearbox
Description:
This is a 20mm stepper motor attached with a gearbox.
The step angle of single 20mm motor is 18°/step.
With a gearbox, motor’s step angle is much smaller, and motors torque is boosted a lot. (depends on gear ratio)
Customer’s are free to choose different gear ratio based on their own requirement.
Also, other parameters, such as motor’s resistance/cable length/connector type are all customizable.
Motor Parameters:
| Model No. | 20BY45-20G |
| Phase No. | 2 phases (bipolar) |
| Rated voltage | 5~8 V DC |
| Resistance | 10Ω/phase (adjustable) |
| Step angle | 18°/gear ratio |
| Output shaft | 4mm diameter D3.5 shaft |
Gearbox Parameters:
| Gearbox levels | Gearbox length L1 (mm) | Gear ratio |
| 3/4 levels | 16 | 10:1/12.5:1/25:1/31.25:1 |
| 5 levels | 17.5 | 50:1/62.5:1/78.1 |
| 6 levels | 19 | 100:1/125:1/156.25:1/195.3:1 |
| 7 levels | 20.5 | 250:1/312.5:1/390.6:1/488:1 |
Design drawing:
Product display:
Application of stepper motors:
Stepper motors are used for precise control, widely used on medical equipment, 3D printer, industrial precise control, automation equipment, etc.
Stepper motors can be used in any mechanisms requirement precise conrtol and rotational/linear movement.
Advantage of stepper motors:
Stepper motor can reach precise control even without close-loop encoders / without feed back system, also they do not have electrical brushed. Thus there is no electromagnetic interference and electrical sparks issues. In some cases, they can replace DC brushed motors/ brushless motors.
Stepper motors are easy to control with drivers, and this feature establish its important position in the field of precise control.
1. Precise control achievable, programmable
2. Without electromagnetic interference & electrical sparks
3. Small size
4. Reasonable price
5. Low noise
6. Long service life
Stepper motors are widely used among all industries.
