C4240/09 1020Rpm/V Brushless Motor for RC Airplane & Helicopter

Specifications

• Speed: 1020rpm/v
• No-load Current: 3.9A
• Load Current: 45A
• Input Voltage: 11.1~25.9V
• Shaft Diameter: 5mm / 0.2in
• Size: 4.2 x 4.0cm / 1.65 x 1.57in(Dia. x L)

Features:

• The brushless motor is made of special material so it is durable
• It is designed to have a good structure and a super light weight
• This RC helicopter motor performs good and make it possible to have a long time of flying fun
• This is a highly efficiency RC helicopter brushless motor
• The temperature won't get high when you finish a flight because of the heat-resisting material
• This helicopter outrunner brushless motor is convenient for your RC airplane & helicopter to use  

Details:

• This outrunner brushless motor is made of special material can be used for a long time

• The rotating shaft of the motor with a specialized treatment process will have a good performance 

• Surface of the brushless motor with good reflection and printed type and trade mark is professional

• The RC helicopter outrunner brushless motor with heat-resisting material can fly for a long time

• With this brushless RC motor, you can make a RC helicopter yourself

 How to Measure the Voltage of a Brushless Motor?  

Brushless motors use electricity to rotate a shaft to perform various tasks like operating radio-controlled cars and running vacuum cleaners. The motor contains an electromagnet that keeps the shaft rotating once electricity is applied. Electrical devices, such as brushless motors, are produced to operate at a particular voltage. Voltage is a measure of the energy available to the system divided by the electrical charge sent to the device. A difference in voltage between two locations in a wired device causes electrical current to flow

Instructions:

• Turn on the digital multimeter. Read the label of the motor or its documentation to determine whether it uses DC or AC electrical current
• Switch the dial on the multimeter to the DC or AC voltage setting, whichever is appropriate. Voltage is denoted by a capital "V" with either straight lines (DC) or wavy lines (AC) above it
• Touch the black probe of the multimeter to the red (positive) terminal of the motor. Touch the red probe of the multimeter to the black (negative) terminal of the motor. The reading that is displayed on the multimeter screen is the voltage in volts

Brushless Motor Advantages:

Brushless motors are small engine systems used in radio controlled vehicles, as well as featuring in other larger systems such as starter motors. They operate by transforming electrical current into torque, which is then used to propel the radio-controlled vehicle. Although they have a similar structure to the earlier brushed motor, the improved design of a brushless motor has many advantages

Low maintenance

Vehicles using brushless motors require significantly less maintenance than their brushed counterparts, according to radio controlled vehicle supplier RC Universe. Brushless motors operate by transferring power from batteries into the engine across brushes, which wear down and need to be replaced. Brushless systems transfer power via electromagnetism, which eliminates the brush friction problem entirely. Consequently, brushless motors require far less maintenance and will not need to be replaced as often

Reliability

Brushless motors use an integrated sensor coupled with an electronic speed controller to control commutation. This offers far more precise commutation than is possible with a brushed motor and manual speed controller. Consequently the right amount of torque is applied by the motor, which runs at more a more efficient rate of revolutions per minute than a manual speed control system. Also, there are no brushes coming into contact with the commutator, further increases reliability

Lower resistance

Radio controlled motors have a limited amount of space available to them, as they have to fit inside the vehicles they are powering. Power in RC motors comes down to how much wire is used, and resistance in the circuit. Because a brushless motor does not need to leave space for brushes, thicker wire can be packed into the case; reducing its resistance. Similarly, more turns of wire can be used, which increases the power

Noise

Brushless motors are less noisy than brushed motors in two distinct yet very useful ways. Firstly, the lack of brushes make brushless motors significantly quieter than brushed motors. This allows them to be used in the home or garden without the buzzing annoying family and neighbors. Secondly, brushless motors generate lower levels of radio interference, which improves communications between the remote handset and the vehicle, improving control quality

Package Included:

• 1 x Brushless Motor
• 2 x Accessories