How many kinds of electric bicycle motors are commonly used today?

There are four common types of motors used in electric bicycles nowadays, namely: brushed geared hub motor, brushed gearless hub motor, brushless gearless hub motor, brushless geared hub motor, etc.

I. Brief description of the basic situation of the motor
Of these four motors, the most common are the first three. And these four motors, in fact, the best is the brushless gear motor, followed by the brushed gear motor, the third is the brushless gearless motor, the fourth, that is, the worst is the brushed gearless motor.
electric bicycle
Second, the motor according to the speed classification
Motor according to the speed, there are generally two kinds: high-speed motor, speed in 3000 rpm or more; low-speed motor, speed in 300 rpm or less. High-speed motors are powerful, high torque, high efficiency and low energy consumption when used for power drive, and low-speed motors are the opposite.
electric bicycle
However, the high speed motor used for electric car, if running at 3000 rpm, it is unimaginable, the speed can catch up with the car, if running under load, due to the lack of power, the rotor can not turn up, easy to burn the motor. So decelerate with reduction gear.
electric bicycle
And the motor with gears are high-speed motor, although the speed is reduced, but the transformation out of the pull (driving force) significantly enhanced, load, climbing are very powerful. And low-speed motors, because the original speed is low, so no gear reduction.
electric bicycle
Third, the motor according to the brush classification
Electric self-side motor is divided into brush motor and brushless motor according to the presence or absence of brushes. The difference in itself is not very big, but brush motor to replace the brushes in time, because that is the wearing parts. Brushless than brush current to be smaller, lower energy consumption some. Therefore, the current market mainstream is brushless motor electric bicycle.

Four, summary
Brush brushless and high-speed low-speed combination, there are four kinds of motors. The best brushless gear motor, but the technology is not very mature, so the market-oriented brushless motor, generally more brushless low-speed motor.

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