Constar Flat Outerrotor brushless motor BO2010NB2B

Product catalog summary

Overview: This document provides technical specifications for the CONSTAR brushless DC motor model BO2010NB2B, designed for UAV and handheld gimbals. It features an outer rotor and operates without sensors.

Options: The motor offers customizable parameters including lead wire length, shaft length, special coils, gearheads, bearing type, Hall sensor, encoder, and driver.

Technical Specifications:

Voltage: Options of 12.0V, 10.0V, and 9.0V.
Terminal Resistance: 2.2Ω, 3.2Ω, and 9.0Ω.
Terminal Inductance: 0.29mH, 0.47mH, and 1.2mH.
No-load Speed: 28000rpm, 17800rpm, and 10800rpm.
No-load Current: 0.2A, 0.1A, and 0.05A.
Stall Torque: 21.4mNm, 15.7mNm, and 7.1mNm.
Stall Current: 5.5A, 3.1A, and 1.0A.
Nominal Torque: 3.5mNm, 4.1mNm, and 4.0mNm.
Nominal Speed: 21420rpm, 11120rpm, and 4230rpm.
Nominal Current: 1.0A, 0.9A, and 0.52A.
Max. Output Power: 15.0W, 7.3W, and 2.0W.
Max. Efficiency: 72%, 67%, and 60%.
Back-EMF Constant: 0.4mV/rpm, 0.5mV/rpm, and 0.8mV/rpm.
Torque Constant: 4.0mNm/A, 5.2mNm/A, and 7.5mNm/A.
Speed/Torque Gradient: 1311rpm/mNm, 1133rpm/mNm, and 1503rpm/mNm.
Rotor Inertia: 2.8gcm².
Weight: 9.6g.
Thermal Resistance: Housing-ambient: 12.5K/W, Winding-housing: 12K/W.
Thermal Time Constant: Motor: 354s, Winding: 15s.
Operating Temperature Range: -40°C to +120°C.
Thermal Class of Winding: 155°C.
Axial Play: 0.012mm.
Radial Play: 0.008mm.
Axial Load: Dynamic: 1.5N, Static: 37N.
Radial Load: 12N at 3mm from mounting face.
No. of Pole Pairs: 4.
Bearings: 2 ball bearings.
Commutation: Sensorless.
Protection Class: IP 20.

Catalog excerpts

Constar Flat Outerrotor brushless motor BO2010NB2B-1

BO2010NB2B 外转子无传感器 Outer Rotor, Sensorless 应用领域 : 无人机云台、手持云台。 Applications: UAV gimbals and handheld gimbals. Terminal resistance Terminal inductance No-load speed No-load current Nominal speed Nominal torque Stall current Stall torque Nominal current 最大输出功率最大效率 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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