Constar 12V Flat brushless motor For Robot BO2015NB2B

Product catalog summary

Overview: This document provides technical specifications for the CONSTAR brushless DC motor, specifically the BO2015NB2B model, which is designed for use in UAV gimbals and handheld gimbals. The motor features an outer rotor and operates without sensors.

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

Technical Specifications:

Voltage: Available in 12.0V, 5.0V, and 24.0V variants.
Terminal Resistance: 3.8Ω, 0.65Ω, and 11Ω respectively.
Terminal Inductance: 0.61mH, 0.063mH, and 1.7mH.
No-load Speed: 11300 rpm, 13700 rpm, and 13500 rpm.
No-load Current: 0.08A, 0.2A, and 0.04A.
Stall Torque: 30.4 mNm, 25.4 mNm, and 35.6 mNm.
Stall Current: 3.2A, 7.7A, and 2.1A.
Nominal Torque: 9.1 mNm, 7.4 mNm, and 14.5 mNm.
Nominal Speed: 6440 rpm, 7940 rpm, and 6400 rpm.
Nominal Current: 1.01A, 2.40A, and 0.93A.
Max. Output Power: 9W, 9.1W, and 12.6W.
Max. Efficiency: 71%, 70%, and 74%.
Back-EMF Constant: 1 mV/rpm, 0.4 mV/rpm, and 1.7 mV/rpm.
Torque Constant: 9.9 mNm/A, 3.4 mNm/A, and 16.6 mNm/A.
Speed/Torque Gradient: 370 rpm/mNm, 539 rpm/mNm, and 378 rpm/mNm.
Rotor Inertia: 6.7 gcm² for all variants.
Weight: 21g for all variants.
Thermal Resistance: Housing-ambient: 9.5 K/W, Winding-housing: 8 K/W.
Thermal Time Constant: Motor: 354s, Winding: 23s.
Operating Temperature Range: -40°C to +120°C.
Thermal Class of Winding: 155°C.
Axial Play: 0.012 mm.
Radial Play: 0.08 mm.
Axial Load: Dynamic: 1.5N, Static: 37N.
Radial Load: 12N at 3 mm from mounting face.
No. of Pole Pairs: 4.
Bearings: 2 ball bearings.
Commutation: Sensorless.
Protection Class: IP 20.

Catalog excerpts

Constar 12V Flat brushless motor For Robot BO2015NB2B-1

BO2015NB2B 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 Stall torque Stall current Nominal torque Nominal speed Nominal current 额定转速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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