Types of Brushless motors——Brushless DC Motor&BLDC Planetary Gearmotor&BLDC Worm Gearmotor Tightly connected

Brushless motors are widely used in modern automation and robotics.The advantages of brushless DC include energy saving, high efficiency, low maintenance, and low noise. The birth and R&D of brushless gear motors are mainly to solve the limitations of traditional brushless motors in low-speed and high-torque applications, and to meet the needs of more industrial automation and precision equipment

Brushless geared motors combine the efficiency of brushless motor technology with speed reducers. These motors are commonly divided into planetary geared motors and worm gear motors, which share efficiency and torque characteristics but differ in structure, direction, and application flexibility.

Just like a tree, the brushless motor is the trunk—while brushless planetary gearmotors and worm gearmotors are its major branches, each extending in different directions to meet specific application needs.

• What Are the Key Differences Between The Types?
  

• What Is Right-Angle Output vs. Coaxial Output in Speed Reducers?

• How to Judge Load Size and Make the Right Motor Selection?

• What Are the Advantages and Disadvantages of Each Motor Type?

• How to choose among these types？

• What Customized Data and Performance Can BG Motor Provide?

What Are the Key Differences Between The Types?

The three types differ in internal construction, output behavior, space requirements, and cost. Here's a simplified comparison table:

What Is Right-Angle Output vs. Coaxial Output in Speed Reducers?

Coaxial output  The input shaft and output shaft are arranged coaxially, such as the helical gear structure of the R series reducer, and the space utilization is optimized through a compact design. It is suitable for heavy equipment with horizontal coaxial transmission, such as cranes, conveyors, etc

Right-angle output The right-angle output adopts bevel gears (such as K series reducers) or turbine-helical gear combinations (such as S series reducers) to achieve a 90° right-angle layout between the input shaft and the output shaft. Suitable for equipment that requires vertical drive, e.g. heavy industrial machinery (K series) or light industrial equipment (S series)

How to Judge Load Size and Make the Right Motor Selection?

• Torque Calculation

• F = load force (N)

  r = radius (m)

  η = efficiency

• Match Application Requirements

  Continuous, heavy load → Brushless geared motor

  Intermittent or low load → Direct brushless motor

• Consider Space and Output Direction

  Tight space → Worm gearmotor

  Precision and inline output → Planetary gearmotor

• Add a Safety Factor
  For industrial use, a 20% safety margin is recommended.

What Are the Advantages and Disadvantages of Each Motor Type?

• Brushless Motor

  Pros: High efficiency, low noise, compact size, high speed

  Cons: Low torque, not suitable for direct heavy-load drive

  Best For: Fans, drones, small pumps

• Brushless Planetary Gearmotor

  Pros: High torque, high efficiency, inline design

  Cons: Higher cost

  Best For: AGVs, robotic arms, precision medical equipment

• Brushless Worm Gearmotor

  Pros: Self-locking ability, right-angle output, good load holding

  Cons: Lower efficiency, larger size

  Best For: Doors, conveyors, lifting platforms

How to choose among these types？

Consider the following key factors:

• Torque and Speed Needs

High speed, low torque → Brushless motor

High torque, low speed → Geared motor

• Installation Space and Output Direction

Inline layout → Planetary gearmotor

Tight corners or directional output → Worm gearmotor

• Precision and Load Characteristics

Precise control and stable load → Planetary gearmotor

Basic drive or need for holding position → Worm gearmotor

• Budget and Lifecycle Demands

Cost-sensitive → Brushless motor

High performance and durability → Geared options

What Customized Data and Performance Can BG Motor Provide?

As a specialized electric motor manufacturer, BG Motor supports full customization of brushless gear motors and geared brushless motors, including:

• Voltage: 12V / 24V / 48V or customized

• Speed: 10–5000 rpm range

• Torque: Up to 100Nm with gearing

• Gear Ratios: Wide range for planetary and worm setups

• Output Shafts: D-cut, keyway, custom designs

• Mounting Flanges: Custom flange dimensions

• Certifications: CE, FCC, ROHS, ISO9001

• Lifespan: ≥10,000 hours for brushless motor work

• Noise Level: Optimized for low-noise medical and smart device use

• IP Ratings: For dust, moisture, and industrial conditions