Constar 12V DC Brushless RC Plane Motor BO2826N2B

Product catalog summary

Overview: This document provides technical specifications for the CONSTAR brushless DC motor model BO2826N2B, designed for applications such as UAVs and aeromodelling. It features an outer rotor and operates without sensors.

Outline Drawing: The motor's dimensions and mounting details are provided, including measurements for various components such as the rotor and mounting holes.

Technical Specifications:

Voltage: Available in 12.0V, 24.0V, and 36.0V options.
Terminal Resistance: Ranges from 0.14Ω to 1.26Ω depending on the voltage.
No-load Speed: Consistent at 10400 rpm across all voltage options.
No-load Current: Varies from 0.15A to 0.44A.
Stall Torque: Between 904 mNm and 931 mNm.
Stall Current: Ranges from 28.6A to 83.3A.
Nominal Torque: Approximately 86.7 mNm to 89.6 mNm.
Nominal Speed: Increases with voltage, from 7820 rpm to 8500 rpm.
Nominal Current: Decreases with higher voltage, from 8.1A to 2.7A.
Max. Output Power: Between 247W and 254W.
Max. Efficiency: Around 86%.
Back-EMF Constant: Varies from 1.1 mV/rpm to 3.4 mV/rpm.
Torque Constant: From 10.9 mNm/A to 32.8 mNm/A.
KV Value: Ranges from 290 rpm/V to 871 rpm/V.
Speed/Torque Gradient: Approximately 11.2 rpm/mNm to 11.6 rpm/mNm.
Rotor Inertia: 31 gcm².
Weight: 53g.
Thermal Resistance: Housing-ambient is 1.7 K/W, winding-housing is 1.8 K/W.
Thermal Time Constant: Motor is 300s, winding is 43s.
Operating Temperature Range: -40°C to +120°C.
Thermal Class of Winding: 180°C.
Axial and Radial Play: 0.014mm and 0.008mm respectively.
Axial Load: Dynamic is 5N, static is 80N.
Radial Load: 29N at 3mm from mounting face.
Number of Pole Pairs: 7.
Bearings: Equipped with 2 ball bearings.
Commutation: Sensorless.
Protection Class: IP 20.

Optional Parameters: Customizations available for lead wire length, shaft length, special coils, gearheads, and bearing type.

Catalog excerpts

Constar 12V DC Brushless RC Plane Motor BO2826N2B-1

BO2826N2B 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 Nominal speed Stall current Stall torque Nominal current Back-EMF constant Torque constant Rotor inertia Speed/torque gradient 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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