Small DC Motor
Diameter from 10mm to 42mm – fits tight smart devices
Wide voltage range 1.5V – 24V for battery-powered systems
High-speed capability up to 40,000 RPM with stable commutation
IP40 standard + optional heat-shrink tubing for moisture defense
Reliable torque output even at low voltage (3V – 12V)
Multiple shaft types, gearboxes, and winding configurations
Kechen Motor – Small DC Motor Manufacturer in China
The Kechen Small DC Motor series covers diameters from 10mm up to 42mm and operates on 1.5V to 24V DC, optimized for low‑power applications from 1W to 100W. Unlike larger motors or brushless alternatives, these brushed motors allow direct battery or PWM speed control without additional drivers. The housing is available in zinc‑plated steel, aluminum, or high‑strength engineering plastics; shafts can be stainless steel or carbon steel. Standard protection is IP40 (ingress of solid objects larger than 1mm). For occasional moisture exposure, optional heat‑shrink tubing seals leads and connections. These motors meet RoHS, CE, and UL standards for global compliance. Mounting uses M1.6 to M3 screws or custom brackets onto plastic, metal, or concrete surfaces.
Kechen Small DC Motors – Meet Your Different Equipment
The Kechen Small DC Motor from 10mm to 42mm diameter uses self‑lubricating sintered bronze bearings or optional ball bearings. Both the metal brush and the carbon brush are fixed and not user‑replaceable; typical motor service life is approximately 200-500 hours under rated load, after which the entire motor should be replaced. Custom options include shaft diameter (0.8mm to 5mm), length, gearheads (spur or planetary), and winding resistance for different speed‑torque curves. Lead wires exit from the rear or side as specified. For orders with occasional moisture exposure, we apply heat‑shrink tubing over lead exits and connections as an optional enhancement. Before shipment, each batch undergoes sample‑based no‑load current.
Why Choose Kechen Small DC Motors: Key Benefits and Features?
Kechen small DC motors are precision-engineered components designed for indoor and semi-protected applications.
- Size and Performance: Ultra-compact (10–42mm diameter) with torque up to 500g·cm and no‑load speeds from 2,000–40,000 RPM.
- Efficiency and Control: High torque at low voltages (1.5–24V), PWM-compatible for variable speed.
- Durability: Fixed brushes and bearings for 200–500 hours life, low noise (<60dB).
- Material Options: Corrosion-resistant casings in zinc‑plated steel, aluminum, or engineering plastics.
- Customization: Gear ratios, shaft lengths, and connectors tailored to specs (MOQ 100pcs).
- Integration: Lightweight (5–150g), with axial or radial leads for easy wiring.
- Cost Savings: 30–50% cheaper than brushless, ideal for high-volume production.
- Standards Compliance: RoHS, CE certified; UL available on select models upon request.
- Low Maintenance: Self-lubricating designs reduce wear.
- Versatile Mounting: Flange, D-cut shaft, or custom fixes for any assembly.
| Parameter | Kechen Small DC Motor Range |
|---|---|
| Motor Diameter | 10mm – 42mm |
| Voltage Range | 1.5V / 3V / 6V / 12V / 24V |
| Output Power | 1W – 100W |
| No‑load Speed (bare motor) | 2,000 – 40,000 rpm (depends on diameter & winding) |
| Expected Service Life | 200 – 500 hours (fixed metal & carbon brushes) |
| Housing Materials | Zinc‑plated steel, aluminum, engineering plastics |
| Shaft Options | Carbon steel (standard), stainless steel (on request) |
| Protection Rating | IP40 standard; heat‑shrink tubing for moisture exposure |
| Certifications | RoHS, CE; UL on select models upon request |
| Custom Options | Shaft diameter/length, gearheads (spur/planetary), windings, lead wire length, encoder mount (available for all diameters 10mm–42mm) |
Kechen Small DC Motor Products
Kechen Small DC Motor 3D Design
Top Applications for Small DC Motors in Industry
In consumer electronics, these motors drive handheld massagers, electric toothbrushes, and mini fans with direct battery operation. For automotive accessories, they power side‑mirror actuators, HVAC dampers, and headlight leveling systems using PWM control from vehicle ECUs. Robotics and hobby applications include micro servo drives, rover wheel motors, and camera gimbals where low weight and simple wiring matter. Medical devices such as portable infusion pumps and surgical staplers rely on the 1.5V–24V range for battery safety. Industrial equipment like label dispensers, coin sorters, and small peristaltic pumps also use Kechen 10mm–42mm motors for daily operation.