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24v 77.5W 42mm Square Three Phase Bldc Gear Motor For Electric Bicycle

24v 77.5W 42mm Square Three Phase Bldc Gear Motor For Electric Bicycle

  • 24v 77.5W 42mm Square Three Phase Bldc Gear Motor For Electric Bicycle
24v 77.5W 42mm Square Three Phase Bldc Gear Motor For Electric Bicycle
Product Details:
Place of Origin: Jiangsu, China (Mainland)
Brand Name: Jkongmotor
Certification: CE, ROHS,ISO9001
Model Number: JK42BLS
Payment & Shipping Terms:
Minimum Order Quantity: 3-10pcs
Price: US$16~US$21
Packaging Details: with export carton . big quantity with pallet
Delivery Time: For samples , 7-15 days / For batch , 15-25days
Payment Terms: T/T , paypal , Western Union, L/C
Supply Ability: 100000pcs/month
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Detailed Product Description
Nema: 42mm Square Bldc Motor Holding Torque: 0.185N.m
Motor Length: 81mm Weight: 0.7kg
Number Of Phase: 3phase Number Of Poles: 8
Rated Voltage: 24v Rated Speed: 4000rpm
Rated Power: 77.5w Matching Driver: JKBLD120
Degree Of Protection: IP30 MOQ: 10pcs
High Light:

three phase bldc gear motor


42mm bldc gear motor


42mm 24v bldc motor

4000rpm 24v 77.5W 42mm bldc motor with driver kit

motores paso a pas
1.Genaral Specification of 42mm bldc motor:


item value
Warranty 3months-1year
Place of Origin China
Brand Name Jkongmotor
Model Number 42mm Brushless dc motor
Usage BOAT, Car, Electric Bicycle, FAN, Home Appliance, Cosmetic instrument, SMART HOME
Certification CE, RoHS
Torque 0.56N.m
Protect Feature Waterproof
Speed(RPM) 4000Rpm
Shape Square
phase 3
Voltage 24V
Poles 8-poles
Hall effect angle 120degree electrical angle
Power 77.5W

2. Electrical Specification of brushless dc motor:


Specification Unit JK42BLS01 JK42BLS02 JK42BLS03 JK42BLS04
Number Of Phase Phase 3
Number Of Poles Poles 8
Rated Voltage VDC 24
Rated Speed Rpm 4000
Rated Torque N.m 0.0625 0.125 0.185 0.25
Rated Current Amps 1.8 3.3 4.8 6.3
Rated Power W 26 52.5 77.5 105
Peak Torque N.m 0.19 0.38 0.56 0.75
Peak Current Amps 5.4 10.6 15.5 20
Back E.M.F V/Krpm 4.1 4.2 4.3 4.3
Torque Constant N.m/A 0.039 0.04 0.041 0.041
Rotor Inertia g.c㎡ 24 48 72 96
Body Length mm 41 61 81 100
Weight Kg 0.3 0.45 0.65 0.8
Sensor Honeywell
Insulation Class B
Degree of Protection IP30
Storage Temperature -25~+70℃
Operating Temperature -15~+50℃
Working Humidity 85% RH
Working Environment Outdoor (no direct sunlight), no corrosive gas, no flammable gas, no oil mist, no dust
Altitude 1000 meters or less

Matching bldc Driver: JKBLD120

4.Dimensions of 24v bldc motor: (Unit=mm)



24v 77.5W 42mm Square Three Phase Bldc Gear Motor For Electric Bicycle 0

5.Advantages of 4000rpm bldc motors:


A BLDC motor with three coils on the stator will have six electrical wires (two to each coil) extending from these coils. In most implementations three of these wires will be connected internally, with the three remaining wires extending from the motor body (in contrast to the two wires extending from the brushed motor described earlier). Wiring in the BLDC motor case is more complicated than simply connecting the power cell’s positive and negative terminals; we will look more closely at how these motors work in the second session of this series. Below, we conclude by looking at the advantages of by BLDC motors.


6.Applications of brushless motor:


We can expect to see BLDC motors used in a wider range of applications in the future. For example, they will probably be widely used to drive service robots—small robots that deliver services in fields other than manufacturing. One might think that stepper motors would be more suitable in this type of application, where pulses could be used to precisely control positioning. But BLDC motors are better suited to controlling the force. And with a stepper motor, holding the position of a structure such as a robot arm would require a relatively large and continuous current. With a BLDC motor, all that would be required is a current proportionate to the external force—allowing for more power-efficient control. BLDC motors may also be replacing simple brushed dc motors in golf carts and mobility carts. In addition to their better efficiency, BLDC motors can also deliver more precise control—which in turn can further extend battery life.

BLDC motors are also ideal for drones. Their ability to deliver precision control makes them especially suited for multirotor drones, where the drone’s attitude is controlled by precisely controlling the rotational speed of each rotor.


 7.Customized of brushless electric motor:

  • BLDC motor with fan
  • BLDC motor with gearbox

Contact Details

Contact Person: Miss. Annie

Tel: +8615995098661

Fax: 86-519-88713769

Send your inquiry directly to us (0 / 3000)


Address: Building A2,Hutang Industrial zone,Lingdao Rd,Wujin District,Changzhou,China.Zip:213162

Factory Address:Building A2,Hutang Industrial zone,Lingdao Rd,Wujin District,Changzhou,China.Zip:213162