OBL9120 Series Outer Rotor Brushless Motor

AE9120

•Adopt multi-pole and multi-slot outer-rotor structure, direct drive, large torque, low noise；

•Using rare earth magnetic steel, small size, high power density, high efficiency；

•Stable operation, strong overload capacity；

Specifications

Input Voltage	40V DC
Dimensions(mm)	Φ99.5x80.5
Shaft Diameter(mm)	Ф13
No Load Speed(rpm)	4300
No Load Current(A)	1.5
Nominal Speed(rpm)	3500
Nominal Torque(Nm)	3
Nominal Current(A)	33
Stall Torque(Nm)	16
Stall Current(A)	171
Maximum Output Power(W)	1840
Maximum Efficiency(%)	89.76
Weight（Typical）	200hrs
Weight(g)	1345
Operating Temperature Range(°C)	-10 to 70
Storage Temperature Range(°C)	-20 to 70

Performance Data

Outline Drawing

Performance Curves

Application

: Chain Saw Solutions
Topband has independently developed a variety of home DIY and commercial models of chain saw external rotor motor program for home and professional gardeners to provide a more efficient and lightweight program options, the use of external rotor motor electric chain saws is also very practical and comfortable, because of less vibration and less noise.
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: Snowplow Brushless Motor
Snowplow is a mechanical equipment specially designed for clearing snow, which is widely used in roads, parking lots, sidewalks, as well as airports, squares and other places in cities and villages. It efficiently removes snow through rotating brushes, shovels or suction functions, providing a convenient solution for winter snow removal.
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: Lawn Mower Brushless Motor
In recent years, with the increasing environmental awareness and technological advancements, the lawn mower market has shown a clear trend towards lithium-electrification, intelligence, and high efficiency. The growing consumer demand for eco-friendly, low-noise, and convenient tools has driven the transition of lawn mowers from traditional fuel-powered to electric and intelligent solutions. Moreover, breakthroughs in battery technology have continuously increased the market penetration rate of lithium-electric lawn mowers, making them the mainstream direction for future development.
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