BLDC motor

BLDC Motor Series 42mm

High-efficiency BLDC motor with an 42 mm frame and durable round housing. Designed for compact installations. Delivers outstanding performance, smooth operation, and superior energy efficiency. Customizable with gear boxes, mounting flange, encoder and integrated driver. CE, RoHS, REACH Compliant.

Electrical Specification

Parameters42L4842L70
Number of poles1010
Number of phases33
Nominal voltage24V24V
No load speed4500RPM4600RPM
Peak current2.84A4.82A
Nominal speed3900RPM3800RPM
Nominal torque50mNm114mNm
Nominal current1.1A2.48A
Peak torque128mNm222mNm
Nominal power20W45W
Line‑to‑line resistance2.5 Ω1.38 Ω
Line‑to‑line inductance1.1 Mh0.7 mH
Torque constant45mNm/A46mNm/A
Back EMF3.05mV/rpm3.2mV/rpm
Rotor inertia27gcm252gcm2
Motor length48mm70mm

Wiring Method

TypeColorFunctions
UL1007 AWG22YellowPhase 1
BluePhase 2
GreenPhase 3
UL1007 AWG26RedVHall
BlackGND
PurpleHall 1
WhiteHall 2
OrangeHall 3

Mechanical Parameters

Radial Play0.02mm@450g
Axial Play0.08mm@450g
Max radial force10N@10mm
Max axial force15N

0ther Parameters

Winding TypeStar connection
Hall Effect AngleElectrical Angle of 120 degree
Dielectric Strength600VAC/1S
Insulation Resistance100MΩ, 500VDC
Insulation ClassClass B
Ambient Temperature-20°C ~ +50°C

Application in Different Scenarios

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Customer Service

 

United Motion Inc.’s motion solution apply in diverse areas all around the world.

Our sales and engineering support teams are ready to assist you with any questions, including quotation, application support, and product configuration.

Please submit your requirements through our Custom Service Form to ensure a faster response. Or you can reach us at info@unitedmotioninc.com  for general inquiries.

Tell Us About Your Application Requirements

 

United Motion Inc welcomes  inquiries and challenges. If you find our standard products cannot meet your need, please feel free to contact us for customization. Our professional engineering and service team will quickly review your need and propose a solution if we can make it. 

We look forward to communicating and collaborating with you!

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