Constar 12V Outer Rotor Brushless DC Motor BO1812N2B

Product catalog summary

Overview: This document provides technical specifications for the CONSTAR brushless DC motor model BO1812N2B, designed for applications such as UAVs and aeromodelling. It features an outer rotor and operates without sensors.

Specifications:

Voltage Options: 6.0V, 9.0V, 12.0V
Terminal Resistance: 0.43Ω, 0.96Ω, 1.70Ω
No-load Speed: 15800 rpm
No-load Current: 0.14A, 0.10A, 0.08A
Stall Torque: 49.6 mNm, 49.9 mNm, 50.1 mNm
Stall Current: 14.0A, 9.4A, 7.1A
Nominal Torque: 9.4 mNm, 10.3 mNm, 9.9 mNm
Nominal Speed: 9690 rpm, 9580 rpm, 10200 rpm
Nominal Current: 2.1A, 2.1A, 1.5A
Max. Output Power: 20.6W, 20.7W
Max. Efficiency: 81.2%, 80.0%, 80.2%
Back-EMF Constant: 0.38 mV/rpm, 0.56 mV/rpm, 0.75 mV/rpm
Torque Constant: 3.6 mNm/A, 5.4 mNm/A, 7.2 mNm/A
KV Value: 2630 rpm/V, 1750 rpm/V, 1320 rpm/V
Speed/Torque Gradient: 318.4 rpm/mNm, 316.8 rpm/mNm, 315.5 rpm/mNm
Rotor Inertia: 2.1 gcm²
Weight: 11g
Thermal Resistance (Housing-Ambient): 10.6 K/W
Thermal Resistance (Winding-Housing): 14.6 K/W
Thermal Time Constant (Motor): 142s
Thermal Time Constant (Winding): 99s
Operating Temperature Range: -40°C to +120°C
Thermal Class of Winding: 180°C
Axial Play: 0.012 mm
Radial Play: 0.008 mm
Axial Load Dynamic: 1.5 N
Axial Load Static: 37 N
Radial Load at 3 mm from Mounting Face: 12 N
Number of Pole Pairs: 6
Bearings: 2 ball bearings
Commutation: Sensorless
Protection Class: IP 20

Options: The motor can be customized with different lead wire lengths, shaft lengths, special coils, gearheads, bearing types, Hall sensors, encoders, and drivers.

Catalog excerpts

Constar 12V Outer Rotor Brushless DC Motor BO1812N2B-1

BO1812N2B 外转子无传感器 Outer Rotor, Sensorless 应用领域 : 无人机、航模等驱动领域。 Terminal resistance No-load speed No-load current Nominal speed Nominal torque Stall current Stall torque Nominal current Torque constant Back-EMF constant Speed/torque gradient Rotor inertia Thermal resistance housing-ambient Thermal resistance winding-housing Thermal time constant winding Thermal time constant motor Operating temperature range Thermal class of winding Radial play Axial play Radial load at 3 mm from mounting face Axial load static Axial load dynamic Protection class 导线长度 Lead wires le

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