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BL42 Brushless DC Motor

BL42 Series

The BL42 uses a 42 mm diameter brushless motor body and offers 12 V and 24 V variants. Three-phase PWM control and a PG45 gearbox pairing are listed with the motor data.

Product Highlights

  • Motor diameter: 42 mm
  • Motor body length: 59 mm
  • Listed rated voltages: 12 V, 24 V
  • Listed rated power: 19–41.5 W

Customization Available

  • Custom shaft diameter, length and features
  • Winding and voltage options
  • Hall sensors and feedback
  • Lead wires and connectors

Product Specifications

ModelBL42-124500BL42-126000BL42-244500BL42-246000
Motor ModelBL42-124500BL42-126000BL42-244500BL42-246000
Manufacturer Part Number————
Motor TypeBrushless DC MotorBrushless DC MotorBrushless DC MotorBrushless DC Motor
Rated Voltage (V)12122424
No Load Speed (rpm)4500600045006000
Rated Speed (rpm)3900.004955.003820.005269.00
No Load Current (mA)500650400550
Rated Current (mA)204090016701920
Stall Current (mA)14200189001140015300
Rated Torque (mN·m)46.8849.1377.6775.22
Stall Torque (mN·m)358.83346.37592.91557.70
Rated Power (W)19.0025.8031.1041.50
Max Efficiency (%)73737474
Motor Diameter (mm)42424242
Motor Length (mm)59595959
Motor Weight (kg)0.3470.3470.3490.349
Shaft Diameter (mm)5555
Shaft ConfigurationSingleSingleSingleSingle
Connector————
Working Lifespan (hours)3000300030003000
Operating Temperature Range (°C)-30 ~ 65-30 ~ 65-30 ~ 65-30 ~ 65
Noise Level At 30 cm (dB)55555553
Noise Level At 50 cm (dB)50505048
Housing MaterialElectrolytic zinc coated steelElectrolytic zinc coated steelElectrolytic zinc coated steelElectrolytic zinc coated steel
Direction Of RotationElectronically reversibleElectronically reversibleElectronically reversibleElectronically reversible
Number Of Pole Pairs6666
Number Of Phases3333
Magnet MaterialNd2Fe14BNd2Fe14BNd2Fe14BNd2Fe14B
Enameled Wire MaterialEnameled copper wireEnameled copper wireEnameled copper wireEnameled copper wire
Insulation ClassUEWUEWUEWUEW
Hall SensorCusomizedCusomizedCusomizedCusomized
Motor Control3 phase rectangular wave rectified + PWM3 phase rectangular wave rectified + PWM3 phase rectangular wave rectified + PWM3 phase rectangular wave rectified + PWM
GearboxPG45PG45PG45PG45
Encoder————