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

KBL2838H-02A

5.39 W, 12 V Ø27.8 mm BLDC motor from Kinmore: 0.00996 N·m rated at 5197 rpm.

Manufacturer datasheet: Kinmore · KBL2838H-02A ↗ (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
5.42 W
Rated torque
0.00996 N·m
Rated speed
5,197 rpm
Rated efficiency
75.7 %

Performance curves

Right axis:
02,0004,0006,00002040608010000.050.10.150.2Torque (N·m)Speed (rpm)Efficiency (%)Rated point
SpeedEfficiency (right axis)

Calculated with the linear DC-motor model (constant 12 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
12 V
Rated power
5.42 W
Rated torque
0.00996 N·m
Rated speed
5,197 rpm
Rated current
0.597 A

Performance

Stall torque
0.166 N·m
No-load speed
5,528 rpm
Rated efficiency
75.7 %
Peak efficiency
78.2 %

Electrical

Torque constant Kt
0.0205 N·m/A
Back-EMF constant Ke
2.14 V/krpm
Resistance
1.46 Ω
Inductance
2.18 mH
No-load current
0.11 A
Stall current
8.24 A
Electrical time constant
1.5 ms
Mechanical time constant
1.04 ms

Mechanical

Rotor inertia
3 g·cm²
Body length
37.6 mm
Shaft diameter
2.3 mm
Weight
0.1 kg
Power density
54.2 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
DBL-10RSMayi MotorBLDC12–60 V DC10 AHall sensors
NU-BL3610-01NuelectronicsBLDC12–36 V DC10 A / 15 AHall sensors, Sensorless, Open loop, Closed loop
NU-BL3010-10NuelectronicsBLDC12–30 V DC10 A / 15 ASensorless, Open loop
NU-BL3010-11NuelectronicsBLDC12–30 V DC10 A / 15 ASensorless, Closed loop
BD15L□□2□Stonker MotorBLDC12–60 V DC15 ASensorless
BLDA0401A1Motion ControlBLDC12–55 V DC18 A

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