• Changzhou Hetai Motor And Electric Appliance Co., Ltd.
    Rod S****
    I purchased the 3-pack of the smaller steppers for my current ender 3 pro project. For my applications, they work perfectly. It's a great deal for quality motors, and I'm going to purchase another 10 packs.
  • Changzhou Hetai Motor And Electric Appliance Co., Ltd.
    Sam N***
    These are great motors and they are very strong. They are operating quietly, and also need them to release their hold every time a move is complete.
  • Changzhou Hetai Motor And Electric Appliance Co., Ltd.
    Jim S**
    Please develop more low noise gearbox and with better prices, so we can sell your products to more clients and gain larger markets. Thank you.
Contact Person : Nora
Whatsapp : +8618661153149

Automotive Brushless Dc Motor Nema 17 42mm

Place of Origin China
Brand Name Hetai
Certification CE ROHS ISO
Model Number 42BLF01
Minimum Order Quantity 50
Price USD
Packaging Details Carton with Inner Foam Box, Pallet
Delivery Time 28-31
Payment Terms L/C, D/P, T/T, Western Union, MoneyGram
Supply Ability 5000pcs/month

Contact me for free samples and coupons.

Whatsapp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

Product Details
Product Name Brushless DC Motors Rated Voltage 24V
Power 26W Winding Type Star
Hall Effect Angle 120° Electrical Angle Insulation Class B
Ambient Temperature -20℃~+50℃ Insulation Resistance 100MΩ Min.500VC DC
Dielectric Strength 600VAC 1 Minute MAX Radial Force 28N (10mm From Front Flange)
MAX Axial Force 10N
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bldc motor nema 17


Nema 17 42mm


Automotive Brushless Dc Motor Nema 17

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Product Description

42BLF01 nema17 24V 4000RPM 8 poles standard brushless dc motor for the automotive pump




No-load speed: 5500 RPM max

Back EMF constant: 4.4 V/kRPM

Torque constant:0.042 N.m/A

Shaft diameter: φ5

Shaft length: 24±1mm


Brushless motors have significantly higher efficiency and performance and lower susceptibility to mechanical wear than their brushed counterparts.


The 42BLF series, is one of the most regular brushless motors applied in the automation industry.


Electrical Specification:


Specification Unit 42BLF01 42BLF02 42BLF03
Number Of Phases Phase 3
Number Of Poles Poles 8
Rated Voltage VDC 24
Rated Speed Rpm 4000

Rated Current

A 1.5 3.1 4.17
Rated Torque N.m 0.063 0.130 0.188
Rated Power W 26 54 78
Peak Torque mN.m 0.189 0.390 0.560
Peak Current Amps 4.5 9.3 12.5
Torque Constant N.m/A 0.042 0.042 0.045
Body Length mm 47 63 79
Weight Kg 0.30 0.45 0.60


Automotive Brushless Dc Motor Nema 17 42mm 0


***Note: The products can be customized by your request. Please contact us for more details.

*Products can match gearbox 36,42mm



+5V RED UL1007 26AWG

Brushless motors offer several other advantages, including:


Higher torque to weight ratio

Increased torque per watt of power input (increased efficiency)

Increased reliability and lower maintenance requirements

Reduced operational and mechanical noise

Longer lifespan (no brush and commutator erosion)

Elimination of ionizing sparks from the commutator (ESD)

Near-elimination of electromagnetic interference (EMI)




1. Are you a factory?

Yes, we are a factory. Our brand name Hetai is a well-known micro motor manufacturer for more than 20 years in
China. Main products including hybrid stepper motor, brushless DC motor, servo motor, and planetary gearbox.

2. Can I test the sample?
Yes, samples and freight are charged.

3. Can I get a Customized product?
Sure, all the products can be customized based on special requests.

4. How do you ship the goods?
We normally ship goods by express(DHL/UPS/FEDEX/TNT), by sea and by air, also accept freight forwarder.

5. What are the payment terms?
T/T(bank transfer), Paypal(0.5% paypal charges), ALIBABA assurance order accept

6. Is this your final price? May I have the discount?
Our price is the factory price. If you have a large quantity, we can negotiate about the discount.

7. What is the Warranty for your products?
Our warranty is for one year. If any quality problems occurred on our side during this period, we will take on the shipping cost and replacement. please note damage caused by improper use of the product is not covered by the warranty.