28mm Brushed DC Motor – 46mm Type Model NFP-RS-390SA
$15.00
28mm brushed DC motor with 46mm body length, delivering stable performance and reliable torque for robotics, DIY builds, and compact automation systems.
Notice: this motor model need to make new ones that would take extra 2-3 weeks.
First, this 28mm brushed DC motor with a 46mm body length offers reliable power for compact systems.
In addition, engineers use this model when they need steady speed and strong torque in small setups.
RS-390 Brush DC Motor Details
| Model | NFP-RS-390SA-2354 | NFP-RS-390SA-0255 | NFP-RS-390SA-06241 | NFP-RS-390SA-6603 |
|---|---|---|---|---|
| Voltage Range | 4.8V – 9.6V | 3.6V – 7.2V | 6V – 24V | 6V – 18V |
| Nominal Voltage | 9.6V DC | 7.2V DC | 12V DC | 12V DC |
| No-load Speed | 20,000RPM | 23,500RPM | 3,000RPM | 12,500RPM |
| No-load Current | 0.8A | 1.5A | 0.06A | 0.35A |
| Max Efficiency Speed | 16,800RPM | 19,500RPM | 2,300RPM | 10,661RPM |
| Max Efficiency Current | 5.6A | 8.17A | 0.22A | 1.96A |
| Max Efficiency Torque | 223g.cm | 191g.cm | 64g.cm | 160g.cm |
| Max Efficiency Torque | 23.86mN.m | 18.73mN.m | 6.27mN.m | 15.69mN.m |
| Max Efficiency Output | 38.73W | 38.35W | 1.54W | 17.50W |
| Max Efficiency | 72% | 66% | 60% | 77% |
| Stall Current | 36.39A | 42.45A | 0.91A | 13.28A |
| Stall Torque | 1,662g.cm | 1,214g.cm | 334g.cm | 1,240g.cm |
| Stall Torque | 162.94mN.m | 119.02mN.m | 32.75mN.m | 121.57mN.m |
Note: all reduced no-load speeds have a tolerance of ±15%.
Mechanical Outline
Also, you can check the dimension drawing below to match your design needs.
Performance Curve & Key Uses
For example, these power curves show output performance across different voltages.
As a result, users often choose this motor for electric tools, drills, screwdrivers, and robot vacuums.
Main Features
- Delivers strong torque output in a standard 28mm frame size.
- Supports flexible voltage options from 3.6V up to 24V DC.
- Fits well into power tools, home appliances, and custom robotics projects.
Related Motor Models & Options
If you need a similar performance profile with a integrated planetary gearbox for higher torque at lower speeds, consider the 28mm Planetary Gear Motor.
For applications requiring higher operating voltages or dynamic power options within the same form factor, explore the 28mm High Torque DC Motor as a direct alternative.
Keywords: direct current motor, brush dc motor, electric brushed dc motor, buy dc brush motor, brushed motor for robot
Sampling quantities for stocked models are available for ordering directly from us online.
Engineering & Manufacturing:
Please contact one of our Sales Engineers for a quotation for production and consultation for customization and integration services.
Payment Method:
Payment methods : Paypal or T/T
Shipping Method:
1.Delivery: DHL door to door 5-7days.
2.Item will be shipped within 1-3 business days after the payment.
3.If you haven’t received the item on the Delivery Time, pls contact us by email if you have any questions. Normally, we will give you a reply within 24hours, if not, pls check the spam of your email box. We will do our best to help you solve the problems.
4.Please make sure your address is matched with the finally shipping address before you pay.
5.In order to ensure you receive your order tax free upon import, we will declare it with a lower value, pls be noted ,thanks!
FAQ - Frequently Asked Questions
Q: If customized, what information should you provide?
A: You need to provide the basic specification of the motor, such as: Dimensions, Sizes Applications, Voltage, Speed and Torque. It's better to offer application prototype drawings to us if possible.
Q: What's your main motors?
A: Diameter 4mm~42mm Dc Micro Motor And Gear Motor, Auto Dc Motor, Electric Motor, Gear Motor, Mini Dc Motor, Brush Dc Motor, Brushless Dc Motor, Spur Gear Motor, Micro Motor, Vibration Motor Etc.
Q: What's the main application of the micro dc motor?
A: Our mini DC motors are widely used in Home Applications, Office Equipment, Health-Care Application, Sanitation Industry, High-Class Toy, Banking System, Electronic and Electrical Tools, Automation Industry, Bank Equipments, Payment Equipments, Vending Machines, Power Door Lock, Electric Door Lock.
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Rik Meloen –
I bought this brushed dc motor for my DIY electric skateboard, and it has been fantastic. It delivers excellent acceleration and maintains a consistent speed. I’m thrilled with its performance.🎉
Leon Burlsworth –
Valid rs390 dc brush motor, very powerful when fed with the appropriate amperage. For example I tried it with a 7.2 volt 1.5A power supply and the motor ran well as speed and was strong with certain force, they do not overheat I would say excellent!