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Brushless DC-Motors
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Introduction

Brushless Motors

High-performance in the smallest of spaces – the FAULHABER portfolio today spans from 4-pole servomotors for high torques to highly efficient flat motors and extremely small brushless DC micromotors.

Thanks to their special design, brushless motors from FAULHABER are ideal for use in high-performance applications in overload or continuous operation with very high service life requirements.

High-quality brushless motors for a long service life

Whether it’s high torque 4-pole DC-Servomotors, highly efficient flat DC-micromotors, or compact slotless motors, FAULHABER specializes in getting the most performance out of the smallest package.

Due to their design FAULHABER brushless motors are predestined for heavy duty servo applications with frequent overload conditions as well as for continuous duty applications where maximum operational lifetime is required.

Brushless DC-servomotors: 2-pole or 4-pole?

FAULHABER high precision 2-pole brushless DC servomotors are three phase ironless motors that have a wide speed and torque range. They are ideal for mid- to high-speed applications requiring smooth speed control, high efficiency, and long operational lifetimes.

For highly dynamic servo applications requiring very high torque in the most compact dimensions, the FAULHABER BX4 and BP4 series 4-pole, DC-servomotors are ideal. Their robust design with very few parts and no glued components means that they are extremely durable and well suited for harsh ambient conditions such as extreme temperatures and high vibration and shock loads.

High efficiency thanks to brushless motors by FAULHABER

FAULHABER brushless flat DC-micromotors are 3-phase, slotless, axial flux gap motors with a rotating back iron. They have a much higher efficiency than other flat brushless motors and their rotating back iron provides a high rotor inertia that is ideal for applications requiring low torque ripple and very precise continuous speed control.

FAULHABER also offers a range of 2-pole brushless motors with a cylindrical rotating back iron sometimes referred to as ironless external outrunner motors. What sets the FAULHABER motor apart is the slotless design, which eliminates the cogging torque. The high inertia of the rotor makes these motors ideal for continuous duty applications that require very precise speed control. These motors also have integrated speed control that can be configured for different speed profiles.

Quick selection
Link to official website
FAULHABER BXT
External Rotor Technology、14-pole construction
  • Diameter
    22~42 mm
  • Length
    14~21 mm
  • Nominal voltage
    6~48 V
  • Nominal voltage
    up to 10,000 rpm
  • Rated Torque
    up to 134 mNm
  • Continuous output
    up to 100 W
External rotor motors with very high torque
Flat design for space-critical applications
Outstanding ratio of torque to weight and size
Matching optical and magnetic encoders, gearheads and controls available
FAULHABER BHx
Coreless、 2 Pole Technology
  • Diameter
    16 mm
  • Length
    45~60 mm
  • Nominal voltage
    24~48 V
  • No-load Speed
    up to 97,000 rpm
  • Rated Torque
    up to 18.7 mNm
  • Continuous output
    up to 96 W
Optional integrat
Large power up to 96 W in small diameter
High speed close to 100‘000 min-1 (BHS version)
Huge impulsive torque > 30 mNm (BHT version)
Very dynamic and responsive with low inertia
Low vibration and low noise, suitable for handtools
FAULHABER B-Micro
2 Pole Technology、Sensorless
  • Diameter
    3~5 mm
  • Length
    8~15 mm
  • Nominal voltage
    3~6 V
  • No-load speed
    up to 96,000 rpm
  • Rated Torque
    up to 0.13 mNm
  • Continuous output
    up to 0.44 W
Extremely compact design
For applications where space is very limited
Matching, highly compact gearheads available
Matching speed controllers available
FAULHABER B
Coreless、2 Pole Technology
  • Diameter
    6~44 mm
  • Length
    18~90 mm
  • Nominal Voltage
    24~48 V
  • No-load speed
    up to 100,000 rpm
  • Rated Torque
    up to 217 mNm
  • Continuous output
    up to 282 W
Extremely smooth speed control
Sensitive positioning control
High density ironless system FAULHABER winding
Digital or analog hall sensors available
FAULHABER BP4
Coreless、4 Pole Technology、High Torques
  • Diameter
    22~32 mm
  • Length
    64~74 mm
  • Nominal voltage
    12~24 V
  • No-load speed
    up to 34,500 rpm
  • Rated Torque
    up to 162 mNm
  • Continuous output
    up to 150 W
High-power motors with maximum torque
Outstanding ratio of torque to weight and size
Very high efficiency of up to 91 %
FAULHABER BX4
Coreless、 4 Pole Technology
  • Diameter
    22~32 mm
  • Length
    32~68 mm
  • Nominal voltage
    6~48 V
  • Nominal voltage
    up to 29,000 rpm
  • Rated Torque
    up to 96 mNm
  • Continuous output
    up to 62 W
High torque and speed rigidity
High reliability and long service life
integrated Speed or Motion Controllers
Position control in extremely confined installation spaces
FAULHABER B-Flat
Flat Motors、rare-earth magnets、4 Pole
  • Diameter
    15~26 mm
  • Length
    9~22 mm
  • Nominal voltage
    6~12 V
  • No-load speed
    up to 40,000 rpm
  • Rated Torque
    up to100 mNm
  • Continuous output
    up to 9 W
4-pole design
Precise speed control
Electronic commutation using three digital Hall sensors