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Brushless Dc Motor

 What is brushless dc motor?

A brushless direct current motor (BLDC) is a small but powerful type of electric motor that uses direct current as its power source. Because of their size and efficiency, BLDC motors are increasing in their popularity and the number of applications they're used for.

 

Jkongmotor offers a wide range of brushless DC motor products featuring:

  • Output Power from 5 W (1/150 HP) up to 3000 W (4 HP)
  • Motor size from 28mm to 110mm ( Nema 11 to Nema 42)
  • Integrated brushless servo motor (pulse / RS485 / CANopen) options
  • Many different shaft kinds available
    • Spur gearbox, worm gearbox, planetary gearbox available
  • Electromagnetic Brake / Encoder options
  • AC or DC Input Drivers
 

Jkongmotor brushless dc motor:

As a professional brushless dc motor manufacturer with 13 years in china, Jkongmotor offer various bldc motors with customized requirements, including 33 42 57 60 80 86 110 130mm, additionally, gearboxes, brakes, encoders, brushless motor drivers and integrated drivers are optional.

Features:

  • No Brushes – Reduced Maintenance and Increased Lifespan 
  • High Efficiency and Low Power Loss 
  • High Torque-to-Weight Ratio 
  • Precise Speed and Position Control 
  • Quiet and Smooth Operation 
  • Wide Speed Range and Dynamic Performance 
  • Excellent Thermal Management Customizable Designs and Modular Configurations 
  • Multiple Control Methods 
  • Integration with Digital Interfaces and Sensors
33bls brushless dc motor

33BLS Series 33mm Round Brushless DC Motor

Brushless DC motor, power: 7W ~ 40W, rated voltage: 24V 48V, rated speed: 3000 ~ 10000rpm, rated torque: 22mNm ~ 50mNm
Optional parts: Gearbox, brake, encoder...
Model Phase Poles Rated Voltage Rated Speed Rated Torque Peak Current Rated Power Body Length Rotor Inertia Driver Weight
Phase Poles Vdc Rpm mN.m A W mm g.cm2 / Kg
JK33BL38-24 3 4 24 3000 22 1.5 7 38 7.95 JKBLD120 0.085
JK33BL80-24 3 4 24 7800 50 5.6 40 80 23.55 JKBLD120 0.2
JK33BL80-48 3 4 48 10000 40 2.9 40 80 23.55 JKBLD120 0.2
2

Nema17 42BL Series Round Brushless DC Motor

Brushless DC motor, power: 6.5W ~ 76W, rated voltage: 24V 36V, rated speed: 3500 ~ 6300rpm, rated torque: 18mNm ~ 115mNm
Optional parts: Gearbox, brake, encoder, integrated built-in drivers...
Model Phase Poles Rated Voltage Rated Speed Rated Torque Rated Current Rated Power Body Length Rotor Inertia Driver Weight
Phase Poles Vdc Rpm mN.m A W mm g.cm2 / Kg
JK42BL30 3 8 24 3500 18 1.5 6.5 30 15.6 JKBLD120 0.25
JK42BL60 3 8 36 4000 80 5 32 60 33 JKBLD120 0.35
JK42BL85 3 8 24 4000 150 7.5 62 85 84 JKBLD120 0.7
JK42BL93 3 8 24 6300 115 10 76 93 94 JKBLD120 0.8
24v brushless motor

Nema17 42BLS Series Square Brushless DC Motor

6Brushless DC motor, power: 26W ~ 105W, rated voltage: 24V, rated speed: 4000rpm, rated torque: 0.0625Nm ~ 0.25Nm
Optional parts: Gearbox, brake, encoder, integrated built-in drivers...
Model Phase Poles Rated Voltage Rated Speed Rated Torque Rated Current Rated Power Body Length Rotor Inertia Driver Weight
Phase Poles Vdc Rpm N.m A W mm g.cm2 / Kg
JK42BLS01 3 8 24 4000 0.0625 1.8 26 41 24 JKBLD120 0.3
JK42BLS02 3 8 24 4000 0.125 3.3 52.5 61 48 JKBLD120 0.45
JK42BLS03 3 8 24 4000 0.185 4.8 77.5 81 72 JKBLD120 0.65
JK42BLS04 3 8 24 4000 0.25 6.3 105 100 96 JKBLD120 0.8
Brushless DC motor

Nema23 57BLS Series Round Brushless DC Motor

Brushless DC motor, power: 23W ~ 184W, rated voltage: 36V, rated speed: 4000rpm, rated torque: 0.055Nm ~ 0.44Nm
Optional parts: gearbox, brake, encoder, fan, integrated built-in drivers...
Model Phase Poles Rated Voltage Rated Speed Rated Torque Rated Current Rated Power Body Length Rotor Inertia Driver Weight
Phase Poles Vdc Rpm N.m A W mm g.cm2 / Kg
JK57BLS005 3 4 36 4000 0.055 1.2 23 37 30 JKBLD300 0.33
JK57BLS01 3 4 36 4000 0.11 2.0 46 47 75 JKBLD300 0.44
JK57BLS02 3 4 36 4000 0.22 3.6 92 67 119 JKBLD300 0.75
JK57BLS03 3 4 36 4000 0.33 5.3 138 87 173 JKBLD300 1.0
JK57BLS04 3 4 36 4000 0.44 6.8 184 107 230 JKBLD300 1.25
crop_1720877185979

Nema23 57BLF Series Square Brushless DC motor

Brushless DC motor, power: 23W ~ 184W, rated voltage: 36V, rated speed: 4000rpm, rated torque: 0.055Nm ~ 0.44Nm
Optional parts: gearbox, brake, encoder, fan, integrated built-in drivers...
Model Phase Poles Rated Voltage Rated Speed Rated Torque Rated Current Rated Power Body Length Rotor Inertia Driver Weight
Phase Poles Vdc Rpm N.m A W mm g.cm2 / Kg
JK57BLF005 3 4 36 4000 0.055 1.2 23 37 30 JKBLD300 0.33
JK57BLF01 3 4 36 4000 0.11 2.0 46 47 75 JKBLD300 0.44
JK57BLF02 3 4 36 4000 0.22 3.6 92 67 119 JKBLD300 0.75
JK57BLF03 3 4 36 4000 0.33 5.3 138 87 173 JKBLD300 1.0
JK57BLF04 3 4 36 4000 0.44 6.8 184 107 230 JKBLD300 1.25
Brushless motor 48v

Nema24 60BLS Series Square Brushless DC Motor

Brushless DC motor, power: 94W ~ 377W, rated voltage: 48V, rated speed: 3000rpm, rated torque: 0.3Nm ~ 1.2Nm
Optional parts: gearbox, brake, encoder, fan, integrated built-in drivers...
Model Phase Poles Rated Voltage Rated Speed Rated Torque Rated Current Rated Power Body Length Rotor Inertia Driver Weight
Phase Poles Vdc Rpm N.m A W mm kg.cm2 / Kg
JK60BLS01 3 8 48 3000 0.3 2.8 94 78 0.24 JKBLD300 0.85
JK60BLS02 3 8 48 3000 0.6 5.2 188 99 0.48 JKBLD300 1.25
JK60BLS03 3 8 48 3000 0.9 7.5 283 120 0.72 JKBLD750 1.65
JK60BLS04 3 8 48 3000 1.2 9.5 377 141 0.96 JKBLD750 2.05
crop_1721973716366

80BLS Series Round Brushless DC Motor

Brushless DC motor, power: 110W ~ 440W, rated voltage: 48V, rated speed: 3000rpm, rated torque: 0.35Nm ~ 1.4Nm
Optional parts: gearbox, brake, encoder, fan, integrated built-in drivers...
Model Phase Poles Rated Voltage Rated Speed Rated Torque Rated Current Rated Power Body Length Rotor Inertia Driver Weight
Phase Poles Vdc Rpm N.m A W mm g.cm2 / Kg
JK80BLS01 3 8 48 3000 0.35 3 110 78 210 JKBLD750 1.4
JK80BLS02 3 8 48 3000 0.7 5.5 220 98 420 JKBLD750 2
JK80BLS03 3 8 48 3000 1.05 8 330 118 630 JKBLD750 2.6
JK80BLS04 3 8 48 3000 1.4 10.5 440 138 840 JKBLD750 3.2
Brushless motor 48v

Nema34 86BLS Series Square Brushless DC Motor

Brushless DC motor, power: 110W ~ 660W, rated voltage: 48V, rated speed: 3000rpm, rated torque: 0.35Nm ~ 2.1Nm
Optional parts: gearbox, brake, encoder, fan, integrated built-in drivers...
Model Phase Poles Rated Voltage Rated Speed Rated Torque Rated Current Rated Power Body Length Rotor Inertia Driver Weight
Phase Poles Vdc Rpm N.m A W mm g.cm2 / Kg
JK86BLS58-X002 3 8 48 3000 0.35 3 110 71 400 JKBLD750 1.5
JK86BLS71-X001 3 8 48 3000 0.7 6.3 220 84.5 800 JKBLD750 1.9
JK86BLS84 3 8 48 3000 1.05 9 330 98 1200 JKBLD750 2.3
JK86BLS98-X015 3 8 48 3000 1.4 11.5 440 111.5 1600 JKBLD750 2.7
JK86BLS125-X015 3 8 48 3000 2.1 18 660 138.5 2400 JKBLD750 4
310v brushless dc motor

Nema42 110BLS Series Square Brushless DC Motor

Brushless DC motor, power: 518W ~ 2073W, rated voltage: 310V, rated speed: 3000rpm, rated torque: 1.65Nm ~ 6.6Nm
Optional parts: gearbox, brake, encoder, fan, integrated built-in drivers...
Model Phase Poles Rated Voltage Rated Speed Rated Torque Rated Current Rated Power Body Length Driver Weight
Phase Poles Vdc Rpm N.m A KW mm / Kg
JK110BLS50 3 8 310 3000 2.38 2.7 0.75 134 JKBLD1100 3.3
JK110BLS75 3 8 310 3000 3.3 3.7 1.03 159 JKBLD2200 4.5
JK110BLS100 3 8 310 3000 5 5.6 1.57 184 JKBLD2200 5.8
JK110BLS125 3 8 310 3000 6.6 7.5 2.07 209 JKBLD2200 7
Brushless motor 48v

Nema52 130BLS Series Square Brushless DC Motor

Brushless DC motor, power: 0.75KW ~ 2.5KW, rated voltage: 310V, rated speed: 3000rpm, rated torque: 2.39Nm ~ 11.94Nm
Optional parts: gearbox, brake, encoder, fan, integrated built-in drivers...
Model Phase Poles Rated Voltage Rated Speed Rated Torque Rated Current Rated Power Body Length Rotor Inertia Weight
Phase Poles Vdc Rpm N.m A KW mm kg.cm2 Kg
JK130BLS115 3 10 310 3000 2.39 2.8 0.75 115 5.9 6.1
JK130BLS120 3 10 310 3000 3.18 3.8 1 120 7.4 6.5
JK130BLS140 3 10 310 3000 4.77 5.7 1.5 140 9.7 7
JK130BLS165 3 10 310 3000 7 8.5 2.2 165 13.5 8.5
JK130BLS190 3 10 310 3000 11.94 9.5 2.5 190 19.7 11

BLDC motors are composed of three primary parts:

  1. Rotor: The rotating part, typically embedded with permanent magnets.
  2. Stator: The stationary part that contains the motor windings.
  3. Electronic Controller: Manages the commutation by switching current direction in the stator windings.
 

Types of Brushless DC Motors

Brushless DC motors can be categorized based on their construction and commutation methods:

1. Inner Rotor BLDC Motors

In this design, the rotor is located inside the stator. Inner rotor motors are known for their high torque and are commonly used in industrial applications.

2. Outer Rotor BLDC Motors

Here, the rotor is positioned outside the stator, resulting in a compact design with high inertia. These are popular in applications like drones and small appliances.

3. Sensor-Based BLDC Motors

Equipped with sensors (e.g., Hall-effect sensors), these motors provide precise feedback on rotor position, ensuring accurate control.

4. Sensorless BLDC Motors

Sensorless motors rely on back-EMF (Electromotive Force) to determine rotor position. They are more affordable and used in cost-sensitive applications like fans and pumps.

 

How Does a Brushless DC Motor Work?

The operation of a brushless DC motor is based on the interaction between the magnetic field of the stator windings and the permanent magnets of the rotor. Unlike brushed motors, where brushes physically transfer electricity to the rotor, BLDC motors rely on an electronic controller to generate a rotating magnetic field.

 

Steps in BLDC Motor Operation:

  1. Electronic Commutation: The controller alternates current flow between different windings, creating a rotating magnetic field.
  2. Rotor Alignment: The magnetic field of the rotor aligns with the stator's magnetic field, causing rotation.
  3. Sensor Feedback: Sensors such as Hall-effect sensors detect rotor position, ensuring precise commutation.

This seamless process ensures higher efficiency and reduced wear, making BLDC motors ideal for demanding applications.

 

Jkongmotor Brushless DC Motors has the following main advantages:

(1) With good mechanical characteristics and regulating characteristics, can replace the DC brush motor speed regulation, frequency conversion motor speed regulation, induction motor plus reducer speed regulation. 
(2) Can run at low speed and high power, save the reducer, and directly drive the large load. 
(3) It has many advantages of the traditional DC brush motor, but also eliminates the brush and collector ring structure. 
(4) Excellent torque performance, medium, and low-speed torque performance start torque is large, start current is small. 
(5) Step-less speed regulation, wide speed range, strong overload capacity. 
(6) Small volume, light weight, large output. 
(7) Soft start, soft stop, and good braking characteristics can leave out the original mechanical or electromagnetic device. 
(8) The motor itself has no excitation loss and brush loss, high efficiency, and a good comprehensive power-saving effect. 
(9) High reliability, good stability, strong adaptability, and simple repair and maintenance. 
(10) Vibration resistance, low noise, small vibration, smooth operation, and long life. 
(11) No spark, especially suitable for public places, anti-interference, good safety performance.

 

Brushless dc motor application:

1. Automotive Industry

2. Consumer Electronics

3. Industrial Automation

4. Medical Devices

5. Aerospace and Drones

 

Key Considerations When Choosing a BLDC Motor

When selecting a brushless DC motor for a specific application, it is essential to evaluate the following factors:

Torque and Speed Requirements

Power Efficiency

Size and Weight Constraints

Environmental Conditions

Cost vs. Performance

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