BL5520O-V3
Flat Ø55 mm outer-rotor BLDC (22.5 mm thick, 24 V) from Shenzhen's KEGU, with optional integrated driver — for fans, pumps and appliance drives.
Figures are copied from the maker’s published datasheet; curves are calculated from them. Confirm with the manufacturer before ordering. Not stated on the datasheet, estimated from it: torque constant, resistance, inductance, rotor inertia, pole count, shaft diameter, insulation class, IP rating.
How this motor is made
Full manufacturing overview: 70 mm Outer-rotor BLDC Motor →- 1. Stator lamination stamping & interlocking
- 2. Stator powder coating
- 3. Outer-stator winding
- 4. Terminal soldering
- 5. Stator in-process test
- 6. Trickle impregnation (optional)
- 7. Stator mounting & Hall board
- 8. Rotor cup assembly
- 9. Magnetizing
- 10. Rotor balancing
- 11. Final assembly
- 12. End-of-line test
Export certification: Low-voltage motor without electronics
- Rated power
- 16.3 W
- Rated torque
- 0.0724 N·m
- Rated speed
- 2,152 rpm
- Rated efficiency
- 71.8 %
Performance curves
Calculated with the linear DC-motor model (constant 24 V supply, ignoring resistance rise with temperature).
Full specifications
General
- Motor type
- BLDC Motor
- Series
- KEGU outer rotor
- Frame / flange
- Ø55 mm
Rated Values
- Rated voltage
- 24 V
- Rated power
- 16.3 W
- Rated torque
- 0.0724 N·m
- Rated speed
- 2,152 rpm
- Rated current
- 0.947 A
Performance
- Stall torque
- 0.526 N·m
- No-load speed
- 2,495 rpm
- Rated efficiency
- 71.8 %
- Peak efficiency
- 71.8 %
Electrical
- Torque constant Kt
- 0.0897 N·m/A
- Back-EMF constant Ke
- 9.39 V/krpm
- Resistance
- 4 Ω
- Inductance
- 1 mH
- No-load current
- 0.14 A
- Stall current
- 6 A
- Poles
- 14
- Electrical time constant
- 0.25 ms
- Mechanical time constant
- 14.9 ms
Mechanical
- Rotor inertia
- 300 g·cm²
- Body length
- 22.5 mm
- Shaft diameter
- 5 mm
- Weight
- 0.22 kg
- Power density
- 74.2 W/kg
- Protection
- IP40
Compatible drivers
All drivers →Drivers whose supply voltage covers this motor and whose continuous current is at least its rated current; drivers from the same maker first. Confirm Hall/encoder type and settings with the maker.
| Model | Maker | Motor type | Supply | Cont. / peak current | Feedback |
|---|---|---|---|---|---|
| APS-06D48-RALTE | TechServo | BLDC, Servo, DC | 18–48 V DC | 6 A / 18 A | Incremental encoder, Hall sensors, Sensorless |
| ZM-BL4810F | Zeming | BLDC | 18–50 V DC | 10 A | Hall sensors, Sensorless |
| ZM-BL48D10 | Zeming | BLDC | 18–50 V DC | 10 A | Hall sensors, Sensorless |
| ZM-BL4810K | Zeming | BLDC | 18–50 V DC | 10 A | Hall sensors, Sensorless |
| DBL-2420R | Mayi Motor | BLDC | 22–36 V DC | 10 A | |
| DBL-10RS | Mayi Motor | BLDC | 12–60 V DC | 10 A | Hall sensors |