The BDCB1630 coreless graphite brushed DC motor is designed for OEM applications requiring higher output, longer brush life, and stable continuous-duty performance. Supporting 6–24V configurations with 2–4.5W output, it is well suited for compact industrial equipment, precision instruments, and embedded drive systems requiring reliable torque delivery.
| Voltage | 6 V / 12 V / 24 V DC |
|---|---|
| Power | 2–4.5 W |
| Speed | 8850–10880 rpm (Rated) |
| Torque | 3.5–4.2 mN·m (Rated) |
| Lifetime | 3,000–5,000 hours |
| Weight | 31 g |
The BDCB1630 coreless graphite brushed DC motor is designed for OEM applications requiring higher output capability, stable torque, and extended service life. Featuring a Φ16 × 30 mm body and a weight of 31 g, it offers greater output performance than smaller graphite brushed motor platforms while maintaining a compact footprint suitable for embedded motion systems.
Supporting 6V, 12V, and 24V configurations, the BDCB1630 delivers rated speeds from 8850 to 10880 rpm with a power range of 2–4.5W. Its graphite brush system provides excellent durability for continuous-duty applications, making it well suited for industrial equipment, compact automation systems, laboratory instruments, and miniature pump drives.
All performance values are measured under standard laboratory conditions. Actual performance may vary depending on operating environment, load characteristics, and controller configuration.
| Motor Model | Unit | BDCB1630-01 | BDCB1630-02 | BDCB1630-03 |
|---|---|---|---|---|
| Value at Rated Voltage | ||||
| At Nominal | ||||
| Nominal Voltage | V/DC | 6 | 12 | 24 |
| Nominal Speed | rpm | 8850 | 10880 | 10240 |
| Nominal Current | A | 0.80 | 0.50 | 0.30 |
| Nominal Torque | mN·m | 3.5 | 3.5 | 4.2 |
| Free Load | ||||
| No-load Speed | rpm | 11800 | 13600 | 12800 |
| No-load Current | mA | 80 | 60 | 35 |
| At Max. Efficiency | ||||
| Max. Efficiency | % | 70.0 | 69.7 | 69.3 |
| Speed | rpm | 10148 | 12376 | 11648 |
| Current | A | 0.50 | 0.30 | 0.10 |
| Torque | mN·m | 1.9 | 1.6 | 1.9 |
| At Max. Output Power | ||||
| Max. Output Power | W | 4.3 | 6.2 | 7.1 |
| Speed | rpm | 5900 | 6800 | 6400 |
| Current | A | 1.5 | 1.1 | 0.6 |
| Torque | mN·m | 6.9 | 8.8 | 10.6 |
| At Stall | ||||
| Stall Current | A | 3.0 | 2.2 | 1.3 |
| Stall Torque | mN·m | 13.8 | 17.5 | 21.1 |
| Motor Constants | ||||
| Terminal Resistance | Ω | 2.00 | 5.45 | 19.20 |
| Terminal Inductance | mH | 0.05 | 0.22 | 0.96 |
| Torque Constant | mN·m/A | 4.73 | 8.20 | 17.40 |
| Speed Constant | rpm/V | 1966.7 | 1133.3 | 533.3 |
| Speed/Torque Constant | rpm/mN·m | 855.1 | 775.4 | 605.3 |
| Mechanical Time Constant | ms | 12.0 | 10.9 | 8.9 |
| Rotor Inertia | g·cm² | 1.34 | 1.34 | 1.40 |
| Number of Pole Pairs | — | 1 | 1 | 1 |
| Number of Phases | — | 5 | 5 | 5 |
| Weight | g | 31 | 31 | 31 |
| Typical Noise Level | dB | ≤42 | ≤42 | ≤42 |
Not sure how to interpret model differences? See the model code breakdown below ↓
Proper installation helps maintain stable output, reduce brush wear, and maximize service life during OEM integration.
Robust Mechanical Structure
The BDCB1630 adopts a Φ16 × 30 mm cylindrical housing, providing additional internal space and higher output capability while remaining suitable for compact equipment.
Bearing & Shaft Protection
Axial play is 0–0.1 mm, radial play is ≤0.03 mm, and ball-bearing axial play is ≤0.015 mm. Maximum dynamic axial load is 0.5 N, while maximum radial load measured 5 mm from the flange is 5 N. Proper shaft alignment helps ensure stable long-term performance.
Operating Environment
Recommended ambient temperature is -20°C to +80°C, with relative humidity below 90% RH (25°C). Maximum rotor temperature should not exceed 125°C.
Optional Gearbox Integration
A planetary gearbox is available for applications requiring lower output speed and increased transmission torque.
Customizable parameters are available to support application-specific integration and OEM development.
| Customization Item | Available Options / Description |
|---|---|
| Voltage | Configurable according to system requirements |
| Speed Curve | Optimized for different load characteristics |
| Shaft Type | Straight shaft, D-cut shaft, or custom-machined shaft |
| Shaft Length | Customized for mechanical integration |
| Gearbox Option | Optional planetary gearbox |
| Wiring / Cable Length | Custom cable routing and length |
| Connector Type | Bare wire, JST, Molex, or customized connectors |
| Mounting Interface | Mechanical adaptation for OEM assemblies |
| Brush Configuration | Graphite brush optimization for different duty cycles |
| Output Terminal | Customized electrical connection solutions |
From an OEM perspective, the BDCB1630 is suitable for applications requiring higher output, reliable continuous-duty operation, and long service life.
For continuous-duty OEM systems, selecting a higher-output graphite brushed motor requires more than comparing rated power. Brush wear, torque reserve, gearbox matching, and production consistency all affect long-term performance in the final equipment.
Germany | Automation Equipment Manufacturer
Application: compact actuator system
Feedback: The motor’s higher output capability improved system responsiveness without increasing installation size.
Japan | Laboratory Equipment OEM
Application: precision testing device
Feedback: Stable speed performance and long brush life reduced maintenance requirements during continuous operation.
United States | Pump System Supplier
Application: miniature fluid transfer module
Feedback: Reliable torque delivery and durable graphite brushes supported long-term system reliability.
[BDCB1630 Coreless Graphite Brushed DC Motor Specification (PDF)]
A1: Temperature rise depends on load torque, operating current, duty cycle, and ambient cooling conditions. Selecting the correct operating point and avoiding continuous overload help maintain stable performance and extend motor life.
A2: Actual output is influenced by supply voltage, transmission efficiency, coupling alignment, and mechanical load. Reviewing the complete drive system is often more important than evaluating the motor alone.
A3: The BDCB1630 is recommended when applications require higher output power, greater torque reserve, and improved continuous-duty capability while still maintaining a compact motor package.
A4: Sample orders are typically shipped within 3–5 working days, while mass production generally requires 20–30 days, depending on order quantity and customization requirements.
A5: Yes. The BDCB1626 is recommended for applications requiring a smaller motor, lower output power, and lighter weight while maintaining the long service life and continuous-duty advantages of a coreless graphite brushed motor.
If you are developing industrial automation equipment, laboratory instruments, compact pump systems, or embedded motion assemblies requiring reliable continuous-duty performance, BODENMOTION provides engineering support from motor selection through OEM production.
📧 Email: info@bodenmotion.com
🌐 Website: https://bodenmotion.com
BODENMOTION supports OEM customers with brushless DC motors, coreless DC motors, and practical motor development support. If you are evaluating a new project or improving an existing product, we welcome the opportunity to understand your requirements and explore a suitable solution with you.
The more clearly we understand your application, the more efficiently we can recommend a suitable motor solution. Useful information may include voltage, speed, size limits, load requirements, application conditions, and any drawings, samples, or technical references available.
Contact our team to discuss your motor project and receive practical support for selection, customization, and next-step evaluation.
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