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2204: Represents the dimensions of the motor case and splits into 2 parts; the first two numbers are diameter; the last 2 numbers are height. This number may be in the middle of other letters and model numbers but is easily distinguished as 4 separate numbers.

## How do you read a brushless motor number?

Brushless motors are typically categorized by a four-digit number – such as **##. where as the “**” numbers are the stator width and “##” is the stator height. Essentially, the wider and taller the motor is, the larger the numbers are and the more torque it can produce.

## How do you calculate the power of a brushless motor?

Brushless motor calculation

1. Imax= sqrt(V Io/Rm) Torque at max efficiency: …
2. Ip= (V + Rm Io)/(2 Rm) Torque at max power output. …
3. MOTOR MAXIMUM EFFICIENCY: (Better mechanical output to electrical work ratio) η max= [1- Sqrt ( Io Rm / V )²] …
4. USING THIS EQUATIONS: A device is wanted to be moved through water by means of a propeller arrangement.
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## What does the kV rating on a brushless motor mean?

The Kv rating of a brushless motor is the ratio of the motor’s unloaded rpm to the peak voltage on the wires connected to the coils. Knowing the Kv rating of a motor will help you determine how fast that motor will rotate when a given voltage is applied to it.

## What do the numbers mean on RC electric motors?

The configuration number tells you how many electromagnets there are on the stator, and the number of permanent magnets there are on the rotor. The number before the letter N shows the number of electromagnets there are in the stator. The number before the P shows how many permanent magnets there are in the rotor.

Traxxas XO-1

## Does higher KV mean faster motor?

Generally speaking the more Kv a motor has, the more RPM and more power. For example, a 9000Kv motor would be faster than a 2200Kv motor. … A higher turn number means more wire and thus more resistance, resulting in a slower motor. So turns with a lower number means a faster motor.

## How do you determine the rpm of a brushless motor?

To estimate the RPM of a motor, simply multiply the Kv value by the battery voltage. Kv is in units of RPM/Volt. The more torque a motor needs to produce, the more current it will draw. The Kt rating designates the amount of torque a motor will produce given a current.

## How do you find the constant of a motor?

To calculate the Motor Voltage Constant read the no-load speed (rpm) and convert it to radians per second. Take the Rated Voltage of the motor and divide it by the speed. To calculate the Speed Constant read the no-load speed (rpm) and convert it to radians per second. Divide this number by the Rated Voltage.

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## What’s the best RC brushless motor?

10 Best Brushless Motor Reviews

• Betafpv Brushless Motors. …
• Hglrc Brushless Motor. …
• Tamiya Brushless RC Motor. …
• Racerstar Brushless Motor. …

## Why are there 3 wires on a brushless motor?

there are 3 wires because it’s a 3 phase brushless system. at any given time two provide power and the other is a sensor. So even though they may split their time doing each, at a split second in time two provide power and the third is a sensor.

## How do I choose a KV motor?

Higher KV motors would attempt to spin the propeller faster, and it can draw more current. That’s why we tend to see larger props paired with low KV motors, while smaller and lighter props are better suited to high KV motors. The KV value can be determined by the number of copper wire windings on the stator.

## How long does brushless motors last?

1,000 to 3,000 hours

13.5

## Which electric motor is equal to what glow engine?

25 size engine equals about 500 watts, a . 60 size engine equals around 1200 watts and a . 90 size engine equals about 1800 watts of electrical power. When considering a 4-stroke glow engine, the conversion factor is around 1500 watts per cubic inch.