Constar 2828 Outer Rotor Brushless DC Motor BO2828N2B

Product catalog summary

Overview: This document provides technical specifications for the BO2828N2B brushless DC motor, designed for applications such as UAVs and aeromodelling. It features an outer rotor and operates without sensors.

Outline Drawing: The document includes a detailed outline drawing with dimensions and optional parameters such as lead wire length, shaft length, special coils, gearheads, bearing type, encoder, and driver.

Main Technical Specifications:

Voltage: Available in 12.0V, 24.0V, and 36.0V options.
Terminal Resistance: Ranges from 0.09Ω to 0.81Ω depending on the voltage.
No-load Speed: Consistent at 11200 rpm across all voltage options.
No-load Current: Varies from 0.20A to 0.63A.
Stall Torque: Between 1289 mNm and 1357 mNm.
Stall Current: Ranges from 44.3A to 127.7A.
Nominal Torque: Between 119.9 mNm and 156.8 mNm.
Nominal Speed: Ranges from 7320 rpm to 8750 rpm.
Nominal Current: Between 4.8A and 11.3A.
Max. Output Power: Between 379W and 395W.
Max. Efficiency: Ranges from 86.3% to 87.1%.
Back-EMF Constant: From 1.1 mV/rpm to 3.2 mV/rpm.
Torque Constant: From 10.2 mNm/A to 30.8 mNm/A.
KV Value: Ranges from 309 rpm/V to 928 rpm/V.
Speed/Torque Gradient: Between 8.2 rpm/mNm and 8.7 rpm/mNm.
Rotor Inertia: 35 gcm².
Weight: 61g.
Thermal Resistance: Housing-ambient is 1.6 K/W, winding-housing is 1.4 K/W.
Thermal Time Constant: Motor is 315s, winding is 45s.
Operating Temperature Range: -40°C to +120°C.
Thermal Class of Winding: 180°C.
Axial and Radial Play: 0.012mm and 0.008mm respectively.
Axial Load: Dynamic is 8N, static is 85N.
Radial Load: 26N at 3mm from mounting face.
Number of Pole Pairs: 7.
Bearings: 2 ball bearings.
Commutation: Sensorless.
Protection Class: IP 20.

Catalog excerpts

Constar 2828 Outer Rotor Brushless DC Motor BO2828N2B-1

BO2828N2B 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 Stall current Nominal current Nominal speed Nominal torque Stall torque 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 无传感器 /Sensorless

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