What is a brushless motor?
A Brushless DC (BLDC) motor is a rotating electric machine where the stator is a classic
three-phase stator like that of an induction motor and the rotor has surface-mounted permanent
magnets. In this respect, the BLDC motor is equivalent to a reversed DC commutator motor
(or brush motor), in which the magnet rotates while the conductors remain stationary. In the DC
commutator motor, the current polarity is altered by the commutator and brushes. On the contrary,
in the Brushless DC motor, the polarity reversal is performed by power transistors switching in
synchronization with the rotor position.
What range of wattages do NMB’s BLDC motors cover?
Our wattage is broken down into size categories:
BLDC65 < 500 Watts
BLDC40 < 270 Watts
BLDC36 < 40 Watts
BLDC25 < 15 Watts
BLDC20 < 10 Watts
BLDC15 < 15 Watts
What is the speed range of NMB BLDC motors?
The speed range of BLDC motors typically depends on the size of the motor. Our ranges are broken down as:
BLDC65 < 5,000 RPM
BLDC40 < 20,000 RPM
BLDC36 < 20,000 RPM
BLDC25 < 6,000 RPM
BLDC20 < 6,000 RPM
BLDC15 < 20,000 RPM
Can NMB brushless motors be run as servo motors?
NMB motor construction will not handle low speed servo motion. Our pole and slot construction is
intended for applications like pumps and rotary motion. Applications that require low speed and
accurate position should consider using a stepper motor with encoder.
What custom modifications are available?
NMB can provide motor with customized shafts, mounted encoders, various controls
(integral, hall only, or sensorless), and alternate magnet materials for power density.
What types of magnets are used in the NMB brushless motors?
NMB utilizes several types of magnets for our motor assemblies. The most typical is bonded neodymium.
Other options are available, such as samarium cobalt, sintered neodymium and rubberized ferrite. These
alternates can be utilized, but usually at a premium price.
What are the advantages of using a brushless motor versus a brush style motor?
No brush noise, efficient, durable, robust, easy to cool
Linear current/torque
Synchronous speed control
Position and Speed Servo (open/closed loop stepper motor)
Customizable Performance
Extended Life
See more:https://www.steppernews.com
