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| Model | SM15-818G |
| Brand | Vic-Tech |
| Motor type | 15mm Worm gear stepper motor |
| Coil resistance | 31Ω±10% |
| OEM & ODM Service | AVAILABLE |
| Step angle | 18 |
| No. of phases | 2 phases |
| Size | D-axis |
| Certification | 1unit |
This is a 15 mm stepper motor with a worm gearbox. There are 1 and 2 heads of worm gear, which can be understood as 1 and 2 teeth. The number of heads is selected according to the gear ratio, and the efficiency of worm gear is relatively low at 22%-27%.
Customers can choose according to their choice of gearbox gear ratio.
21:1,42:1,118:1,236:1,302:1,399:1,515:1,603:1,798:1,1030:1.
In addition to these gear ratios, customers can also customize the speed ratio as needed, which is generally possible.
The larger the transmission ratio, the slower the output shaft rotation and the higher the torque.
Output shaft torque=motor torque*reduction ratio*gearbox efficiency
15mm motor torque is usually at 15g.cm
With a gearbox with 118:1 gear ratio
Gearbox efficiency is about 24%
The output torque is approx：15g*cm * 118 * 0.24 = 424 g*cm
| Model no. | SM15-818g |
| Motor diameter | 15mm |
| Motor type | Permanent magnet motor |
| Drive voltage | 5v dc |
| Coil resistance | 31ω±10%/phase |
| Number of phase | 2 phases |
| Step angle | 18° |
| Gear ratio | 21:1~1030:1 |
| Oem&Odm service | Available |
| Efficiency | 22%-27% |
Yes, we are a manufacture, and we produces mainly stepper motors.
Our factory is located in Changzhou, Jiangsu. Yes, you are very welcome to visit us.
No, we don’t provide free samples. Customers won’t treat free samples fairly.
Customers pay for shipping cost. We will quote you shipping cost.
If you think you have cheaper/more convenient shipping method, we can use you shipping account.
We don’t have MOQ, and you can order only one piece sample.
But we recommend you to order a little bit more, just in case the motor is damaged during your testing, and you can have a back-up.
We have over 20 years of experience in stepper motor industry.
We have developed many projects, we can provide full set customization from design drawing to production.
We are confident we can give you few advice/suggestions for your stepper motor project.
If you are worrying about confidential issues, yes, we can sign a NDA contract.
Yes, we do sell drivers. They are only suitable for temporary sample test, not suitable for mass production.
We do not produce drivers, we only produce stepper motors