Constar 6V Outer Rotor Brushless DC Motor BO1815N2B

Product catalog summary

Overview: This document provides the specifications for the CONSTAR Brushless DC Motor, model BO1815N2B, 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: 0.21Ω, 0.43Ω, 0.72Ω
No-load Speed: 19900 rpm for all voltage options
No-load Current: 0.32A, 0.21A, 0.14A
Stall Torque: 81 mNm, 89 mNm, 94 mNm
Stall Current: 28.9A, 21.1A, 16.7A
Nominal Torque: 18.0 mNm, 17.1 mNm, 18.5 mNm
Nominal Speed: 9550 rpm, 11100 rpm, 11070 rpm
Nominal Current: 6.1A, 4.6A, 3.7A
Max. Output Power: 42W, 47W, 49W
Max. Efficiency: 80.0%, 81.1%, 82.6%
Back-EMF Constant: 0.3 mV/rpm, 0.4 mV/rpm, 0.6 mV/rpm
Torque Constant: 2.9 mNm/A, 4.3 mNm/A, 5.7 mNm/A
KV Value: 3307 rpm/V, 2212 rpm/V, 1664 rpm/V
Speed/Torque Gradient: 243.5 rpm/mNm, 223.2 rpm/mNm, 212.0 rpm/mNm
Rotor Inertia: 2.8 gcm²
Weight: 11g
Thermal Resistance: Housing-ambient: 2.8 K/W, Winding-housing: 2.4 K/W
Thermal Time Constant: Motor: 173s, Winding: 112s
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: 1.5N, Static: 37N
Radial Load: 12N at 3 mm from mounting face
Number of Pole Pairs: 6
Bearings: 2 ball bearings
Commutation: Sensorless
Protection Class: IP 20

Options: Lead wire length, shaft length, special coils, gearheads, bearing type, encoder, driver.

Catalog excerpts

Constar 6V Outer Rotor Brushless DC Motor BO1815N2B-1

BO1815N2B 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 torque Torque constant Back-EMF constant Nominal current Nominal speed Stall current Stall torque Speed/torque gradient Rotor inertia Thermal resistance housing-ambient Thermal resistance winding-housing Thermal time constant motor Thermal time constant winding Operating temperature range Thermal class of winding Radial play Axial play Axial load dynamic Axial load static Radial load at 3 mm from mounting face

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