What does Kv stand for in RC motors?

Answer: “Kv” refers to the constant velocity of a motor (not to be confused with “kV,” the abbreviation for kilovolt). It is measured by the number of revolutions per minute (rpm) that a motor turns when 1V (one volt) is applied with no load attached to that motor.

Does higher Kv mean faster motor?

Kv describes the RPM (revolutions per minute) a motor does per Volt that is put into it. 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. If Kv is like horsepower, then Turns is the physical attribute of a motor.

Is a lower Kv motor faster?

The kV rating is the RPM of the motor with no load, not the kilo-volt. A motor that has a higher kV will have more top end speed, but not as much Torque. A motor with a lower kV will have more power and will accelerate faster.

Is higher Kv better RC?

Quick answer: no, higher Kv is not better.

Does lower Kv mean more torque?

In summary, a low KV motor has more winds of thinner wire - it will carry more volts at less amps, produce higher torque and swing a bigger prop. So yeah, lower kv motors have thinner wires. Thinner wires mean more resistance and less current for the same voltage.

How do I choose a Kv motor?

Choosing the correct KV is very important, it's critical for the motor operation and high motor performance which is critical for the project. There are few things that determine the top speed: Battery voltage, gear ratio (if any), wheel size ( if any) and the motor KV.

Is lower Kv better for crawling?

This logic is the same for all other kV values. If you want your vehicle to be slightly faster, you can use an 1800 kV. However, using a 2300 kV will allow you to drive your RC rock crawler both slowly and fast. The higher the KV number, the greater the revolutions per minute.

What does 1800kv mean?

The pulses happen so fast that the motor takes an average voltage. So full voltage ~ 11 plus no voltage 0 divided by two equals 5.5 volts. So an 1800kv motor at 5.5 volts will spin at 1800*5.5 which equals 9900 rpm no load. Because as stated, the kv is rpm per volt.

How many Kv is a 8.5 turn motor?

A Novak 8.5 "turn" is rated at 5000 KV but another manufactures 8.5 may be different as most do not post their KV rating. +1... Well put!

What Kv is the Traxxas Velineon?

The Velineon 3500 motor is a 10-turn, 3500 kV motor optimized for the best speed and efficiency in lightweight 1/10 scale models.

What does 12T mean on RC Motors?

Now a 12T triple for example means ... Twelve turns around each motor pole using triple wires. Three wires are would twelve times around the pole. A 12T double would use two wires wound twelve times and a 12T single a single thicker wire wound twelve times around each rotor pole.

What makes an RC motor fast?

You can make small changes to your RC car to make it run faster. Changing the wheels, adjusting the gear ratio, and upgrading the motor and batteries are all great ways of making your RC car run faster.

What does 1000kv motor mean?

Kv= RPM per volt. So a 1000kv motor supplied with 10V will spin at 10,000 rpm, or supply the same motor 240V for 240,000rpm.

What is the fastest brushless RC motor?

“The Traxxas XO-1 is the fastest RC car, full stop. The largest brushless motor on offer propels the car from 1 to 60 in 2.5 seconds. Not only is this car stylish, but it also reaches speeds over 100 miles per hour.”

How can I make my electric RC car go faster?

12 Ways to Speed Up Your RC Car

1. Make it Lighter. Weight is a big deal when it comes to the mobility of RC cars. ...
2. Consider Changing the Tires. ...
3. Get Another Pinion Gear. ...
4. Get Another Battery Pack. ...
5. Have the Motor Changed. ...
6. Adjust Motor Timing. ...
7. Change Bearings. ...
8. Use Grease Instead of Oil.

What is the Kv rating on a brushless motor?

The Kv rating (not to be confused with kilo-volt) is the RPM of the motor (k) per volt (V) with no load. For example, a brushless motor with a Kv rating of 3000 powered by a 12V power source would be capable of 36,000 RPMs (multiply 3000x12). This is the max RPMs that this motor can reach under no load.

What is a 550 size motor?

A 550 is a physically larger motor. Same 36mm diameter, but while 540s are typically 50mm in length, a 550 can be anywhere from 55mm to 90mm long.

What Kv is a 3.5 T motor?

Location: RIP 'Chopper', 4/18/13 miss you bud:( I'm not sure the sidewinder is rated down to a 3.5t which is rated around 10,500 kv depending on the motor.

What is a 540 size motor?

Any motor shorter or equal to 50 mm is called a 540 motor. A bit longer than 53mm are 550mm motors. Almost all 540 motors are a maximum of 53mm in length and so they are almost the same size.

What is BLDC motor Kv?

Bldc motor are rated by term kV(not kilo volt) it is rpm per volt of motor so a 100kv motor will run at 1000rpm with 10volt battery. ✓ Normally the larger the load the lower the KV (RPM per volt) of the motor required and the higher the voltage required, as lower KV generally indicates more torque.

How do you calculate the Kv of a brushless motor?

Motor Kv provides a way to describe the relationship between the peak voltage and rotation speed in a brushless motor in a no-load condition. The unit for Kv is RPM/V and it can be estimated by dividing the rotation speed of the unloaded motor with the applied voltage.

What kV is best for crawling?

There are three options for the motor for the AXE system: 1200 kV is the best choice if you want super slow crawling, 1800 kV for slightly faster crawling and 2300 kV, that was my choice, when you want to be able to drive both slowly and fast.

Is brushed or brushless better for crawling?

Brushed motors provide excellent slow speed control making them a great choice for rock crawlers where precise driving is key. Brushless motors are basically built in the opposite manner of brushed motors. If you have a good understanding of brushed motors, think of brushless motors as the inside out version.