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Cobra CM-4520/18 Multirotor Motor, Kv=310

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Price: $93.99
Out of Stock.
Item Number: CM-4520/18
Manufacturer: Cobra
Mfr Part No: CM452018
Cobra CM-4520/18 Multirotor Motor, Kv=310

The Cobra CM-4520 series motors have a 6.0mm motor shaft for extra strength, as well as oversize ball bearings to support the shaft and provide a long life. The stators are made with 0.20mm laminations for maximum efficiency and minimum Eddy Current losses. Since these motors are typically soldered directly to the speed controller for reliability, and often need to be cut to length for the specific installation, the CM-4520 motors come without bullet connectors and feature extended pre-tinned motor leads that are 17 inches (430mm) long. These motors also have 3mm threaded holes in a 25x25mm pattern on the back plate for easy installation on your model.

Included with every Cobra CM-4520 Series Motor is a complete accessory package which contains the following items:

● Four M3x6mm Motor Mount Screws
● Four M3x10mm Prop Adapter Mounting Screws
● Machined Aluminum Bolt-on Style Prop Adapter
● Machined Aluminum Prop Washer
● Prop Nut and Locking Prop Nut with Nylon Insert
● Machined Aluminum Top Plate for Carbon Fiber Props

Cobra CM-4520/18 Motor Specifications

 Stator Diameter

 45.0 mm (1.772 in)

 Stator Thickness

 20.0 mm (0.787 in)

 Number of Stator Slots

 12

 Number of Magnet Poles

 14

 Motor Wind

 18 Turn Delta

 Motor Kv Value

 310 RPM per Volt

 No Load Current (Io)

 0.99 Amps @ 21 Volts

 Motor Resistance (Rm) per Phase

 0.066 Ohms

 Motor Resistance (Rm) Phase to Phase

 0.044 Ohms

 Maximum Continuous Current

 45 Amps

 Max Continuous Power (5-cell Li-Po)

 835 Watts

 Max Continuous Power (6-cell Li-Po)

 1000 Watts

 Motor Weight

 340 grams (11.99 oz.)

 Outside Diameter

 54.9 mm (2.161 in.)

 Motor Shaft Diameter

 6.00 mm (0.236 in.)

 Prop Shaft Diameter

 6.00 mm (0.236 in.)

 Motor Body Length

 42.8 mm (1.685 in.)

 Overall Shaft Length

 48.0 mm (1.890 in.)

 Motor Timing

 5-10 degrees

 PWM Frequency

 8 KHz to 20Khz



CM4520/18




Cobra Multirotor Motor

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