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The BL4112-003D Brushless DC Motor is a compact, high-performance sensorless BLDC motor designed for fan systems, cooling modules, and continuous-operation airflow applications.
With 23 W input power, 3500 RPM rated speed, and 0.5 A no-load current, it delivers smooth, reliable, and efficient rotation. The motor features low vibration, stable controlled operation, and a 3000-hour rated lifespan, making it suitable for long-running embedded systems.
The included mechanical dimensions from the manufacturer provide precise mounting and integration data, ensuring compatibility with OEM and custom-designed housings.
View moreWhat’s Included1 Brushless DC Motor BL4112-003DDimensions
Diameter: 41 mm
Total Height: 186.90 mm
Shaft Diameter: 6 mm
Shaft Length: 30.50 mm 2
Mounting Widths: 79.90 mm / 82.90 mm
Overall dimensional tolerances: 0.20 / 0.30 / 0.010
Specifications
Electrical Specifications
Rated Voltage: 12 V
Voltage Range: 1013.2 V
Input Power: 23 W
Input Power Accuracy: 4 W
Phase: 3
Pole Pairs: 5
Detection Method: Sensorless drive
Rated Speed: 3500 RPM
Rated Speed Range: 3003500 RPM
No-load Speed: 3500 RPM
No-load Speed Accuracy: 10%
No-load Current: 0.5 A
Rated Current: 2.5 A
Current Limit: 3.5 A
Mechanical Performance
Rated Torque: 60 mNm
Rotation Direction: CCW / CW
Vibration: 30 m P-P
Product Life: 3000 h
Basic Placement: Horizontal
Environmental Specifications
Operating Temperature: 10C to +40C
Storage Temperature: 40C to +35C
Operating Humidity (Non-condensing): 3090% RH
Storage Humidity (Non-condensing): 585% RH
Temperature Rise: 85C
Insulation & Safety
Dielectric Strength: 500 VAC / 1 sec
Insulation Resistance: 10 M
Insulation Resistance Test: 500 V DC
Application
Fan systems
Airflow control modules
Continuous-operation cooling units
Compact embedded ventilation devices