Constar 24V Outer Rotor 1000kv Brushless Motor BO2820N2B

Product catalog summary

Overview: This document provides technical specifications for the CONSTAR Brushless DC Motor, specifically the BO2820N2B model, which is an outer rotor, sensorless motor. It is designed for applications such as UAVs and aeromodelling.

Specifications:

Voltage: Available in 12.0V, 24.0V, and 36.0V options.
Terminal Resistance: Ranges from 0.14Ω to 1.22Ω depending on the voltage.
No-load Speed: Consistent at 14000 rpm across all models.
No-load Current: Varies from 0.16A to 0.48A.
Stall Torque: Between 664 mNm and 718 mNm.
Stall Current: Ranges from 29.6A to 86.3A.
Nominal Torque: Between 68.5 mNm and 75.1 mNm.
Nominal Speed: Ranges from 10350 rpm to 11310 rpm.
Nominal Current: Between 3.0A and 9.1A.
Max. Output Power: Between 244W and 263W.
Max. Efficiency: Approximately 85% across all models.
Back-EMF Constant: Ranges from 0.9 mV/rpm to 2.6 mV/rpm.
Torque Constant: Between 8.1 mNm/A and 24.4 mNm/A.
KV Value: Ranges from 389 rpm/V to 1168 rpm/V.
Speed/Torque Gradient: Between 19.5 rpm/mNm and 21.2 rpm/mNm.
Rotor Inertia: 19 gcm².
Weight: 41g.
Thermal Resistance: Housing-ambient is 2.3 K/W, winding-housing is 2 K/W.
Thermal Time Constant: Motor is 280s, winding is 37s.
Operating Temperature Range: -40°C to +120°C.
Thermal Class of Winding: 180°C.
Axial and Radial Play: Axial play is 0.012mm, radial play is 0.008mm.
Axial Load: Dynamic is 5N, static is 80N.
Radial Load: 29N at 3mm from mounting face.
Number of Pole Pairs: 7.
Bearings: 2 ball bearings.
Commutation: Sensorless.
Protection Class: IP 20.

Options: Customizable parameters include lead wire length, shaft length, special coils, gearheads, and bearing type.

Catalog excerpts

Constar 24V Outer Rotor 1000kv Brushless Motor BO2820N2B-1

BO2820N2B 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 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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