Brushless motor RB-1806-CE

BLDC8.4 V7.4 V

Product Overview

RB-1806-CE is an 1806-class outer rotor brushless DC motor (BLDC) designed for compact high-speed drive applications such as small drones, miniature air pumps, handheld fans and smart home devices. The motor uses a flat-profile outer-rotor (outer rotor diameter ~23.4 mm), supports typical battery voltages 7.4V (2S) and 11.1V (3S) and can reach no-load speeds up to approximately 22,747 rpm depending on variant. OEM/ODM customization is available for electrical and mechanical parameters.

Key Facts for Engineering Buyers

• Product category: Outer rotor brushless DC motors
• Motor family: Outer rotor BLDC (1806-class)
• Brand / manufacturer: KWC Motor, Dongguan KWC Machinery Co., Ltd.
• Typical applications: small UAVs and drones, miniature air pumps, handheld fans, smart home appliances

Specification Signals

• Diameter: 18 mm (stator class), outer rotor diameter ~23.4 mm
• Voltage: typical support 7.4V (2S) and 11.1V (3S); some variants 5.0V–13.1V
• Speed: no-load examples up to ~22,747 rpm; typical max-eff speeds vary by variant

Customization Notes

• Supports OEM/ODM customization: KV value, operating voltage range, shaft length and threading (CW/CCW), mounting patterns, connectors, pre-installed wires or prop adapters, gearbox or control integration.
• Performance tuning available for KV, speed/torque balance and dynamic balancing for low vibration and EMC/noise targets.

Core Applications & Solutions (Target Applications)

• UAV & Drones: Suitable for small quadcopters and RC aircraft. Outer-rotor layout increases rotational inertia for stable flight; flat-profile reduces height and aerodynamic drag.
• Mini Air Pumps & Smart Home Appliances: Suitable for portable air pumps, handheld fans and compact smart appliances where high-speed impeller drive and compact integration are required.

Technical Table (from datasheet)
Model | Operating Range | Nominal | No Load Speed | Max Eff Speed | Max Eff Torque | Output
RB-1806-CE-N-01 | 5.0V - 8.4V | 7.4V (2S) | 18,300 rpm | 15,555 rpm | 167.6 g.cm | 26.73 W
RB-1806-CE-N-02 | 5.0V - 13.1V | 11.1V (3S) | 18,150 rpm | 15,428 rpm | 191.0 g.cm | 30.00 W
RB-1806-CE-N-03 | 5.0V - 8.4V | 7.4V (2S) | 21,573 rpm | 19,313 rpm | 88.4 g.cm | 17.90 W
RB-1806-CE-N-04 | 5.0V - 13.1V | 11.1V (3S) | 22,747 rpm | 20,184 rpm | 154.0 g.cm | 32.50 W

Comparison Highlights

• Outer-rotor configuration: improved heat dissipation as the rotating shell promotes airflow compared with typical inner-rotor designs
• Higher direct-drive torque: preferable for propeller/impeller drive versus inner-rotor motors that may require gear reduction
• Flat-profile form factor: saves axial height for compact assemblies
• Fast response: direct-drive design enables quick speed changes

Technical characteristics / specifications

• Model: RB-1806-CE (variants: RB-1806-CE-N-01 / N-02 / N-03 / N-04)
• Motor type: Outer rotor brushless DC motor (BLDC)
• Stator classification: 1806 (stator outer diameter ~23.4 mm)
• Rotor: outer-rotor, flat-profile body for improved heat dissipation and reduced aerodynamic drag
• Typical voltage support: 7.4V (2S) and 11.1V (3S); some variants operate from 5.0V up to 13.1V
• Speed and torque examples: no-load and max-eff values vary by variant (examples up to ~22,747 rpm no-load; max-eff torque 88.4–191.0 g·cm)
• Output power examples: ~17.90 W to ~32.50 W depending on variant
• Applications: small quadcopters, RC aircraft, miniature air pumps, handheld fans, smart home devices
• Customization: KV tuning, shaft length/threading, mounting patterns, connector/wire options, prop adapters, gearbox/control integration, EMC/noise tuning
• Note: No-load and max-efficiency datapoints are reference values; verify continuous operation limits for your temperature and load profile.