ClassA Motor
BLDC MotorKinmore KBL2838 brushless DC motor · Ø27.8 mm

KBL2838H-04A

8.74 W, 24 V Ø27.8 mm BLDC motor from Kinmore: 0.0187 N·m rated at 4496 rpm.

Manufacturer datasheet: Kinmore · KBL2838H-04A ↗ (checked 2026-10-18)Maker profile & contacts →

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 (fitted to the rated point), resistance (fitted to the rated point), inductance, rotor inertia, weight, insulation class, IP rating.

Applications:Home AppliancesPower ToolsFans & Pumps
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How this motor is made

Full manufacturing overview: 57 mm Inner-rotor BLDC Motor →

Ø27.8 mm frame; built with the same process as the 57 mm inner-rotor reference series.

Assembly steps
11
Equipment types
14
BOM lines
13
PRD suppliers
88
  1. 1. Lamination stamping & interlocking
  2. 2. Stator insulation
  3. 3. Winding
  4. 4. Terminal connection
  5. 5. Stator in-process test
  6. 6. Impregnation & curing
  7. 7. Rotor assembly
  8. 8. Magnetizing
  9. 9. Rotor balancing
  10. 10. Final assembly
  11. 11. End-of-line test

Export certification: Low-voltage motor without electronics

Rated power
8.8 W
Rated torque
0.0187 N·m
Rated speed
4,496 rpm
Rated efficiency
70.4 %

Performance curves

Right axis:
02,0004,0006,00002040608000.050.10.15Torque (N·m)Speed (rpm)Efficiency (%)Rated point
SpeedEfficiency (right axis)

Calculated with the linear DC-motor model (constant 24 V supply, ignoring resistance rise with temperature).

Full specifications

General

Motor type
BLDC Motor
Series
Kinmore KBL2838 brushless DC motor
Frame / flange
Ø27.8 mm

Rated Values

Rated voltage
24 V
Rated power
8.8 W
Rated torque
0.0187 N·m
Rated speed
4,496 rpm
Rated current
0.521 A

Performance

Stall torque
0.137 N·m
No-load speed
5,205 rpm
Rated efficiency
70.4 %
Peak efficiency
70.4 %

Electrical

Torque constant Kt
0.0429 N·m/A
Back-EMF constant Ke
4.49 V/krpm
Resistance
7.31 Ω
Inductance
11 mH
No-load current
0.085 A
Stall current
3.28 A
Electrical time constant
1.5 ms
Mechanical time constant
1.19 ms

Mechanical

Rotor inertia
3 g·cm²
Body length
37.6 mm
Shaft diameter
2.3 mm
Weight
0.1 kg
Power density
88 W/kg
Insulation class
B
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.

ModelMakerMotor typeSupplyCont. / peak currentFeedback
APS-06D48-RALTETechServoBLDC, Servo, DC18–48 V DC6 A / 18 AIncremental encoder, Hall sensors, Sensorless
ZM-BL4810FZemingBLDC18–50 V DC10 AHall sensors, Sensorless
ZM-BL48D10ZemingBLDC18–50 V DC10 AHall sensors, Sensorless
ZM-BL4810KZemingBLDC18–50 V DC10 AHall sensors, Sensorless
DBL-2420RMayi MotorBLDC22–36 V DC10 A
DBL-10RSMayi MotorBLDC12–60 V DC10 AHall sensors

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