Scorpion HK-7050-340 Motor, Kv=340

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Scorpion HK-7050-340 Motor

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The Scorpion HK-7050-340KV motor provides 10KW of maximum continuous power and with a maximum continuous current of 200 Amps, it can be used on large application such as e-bike, e-boat or large UAV. This motor features a massive 12mm main shaft that is ground down to 10mm at the output end to fit standard pinions, gears and pulleys. Since there is such a wide variety of connectors that can be used with this size motor, no connectors are supplied, and the motors leads are pre-tinned, ready to install your preferred connector.

The Scorpion Brushless Motors are built from the best materials available, and are designed to provide both quality and performance at an affordable price. Scorpion starts with high quality aluminum alloy parts that are produced on the latest CNC milling machines. These parts are then gold Electro-plated to provide a beautiful, long-lasting finish. The stators are made with 0.35mm lamination's to give maximum efficiency, and minimum Eddy current losses. The stators are epoxy coated to prevent shorts, and are wound with wire that is rated at 180 degrees C (356 F). The magnets used in Scorpion Motors are custom manufactured to be able to withstand high temperatures, making a motor that is virtually impossible to burn up in normal use.

Scorpion Motors are built to last, and are backed with a 2-Year warranty against defects in materials or workmanship. However, due to the high RPM of these motors, and the fact that we cannot control the installation and setup, the bearings are not covered by the 2-Year warranty, nor is any subsequent damage caused to the motor by a bearing failure. Bearings are a normal wear item, and as such, need to be maintained and changed periodically. For maximum life, make sure that a sufficient gap is left between the pinion and main gear during motor installation to avoid binding, and put a small drop of oil on each bearing every 5-6 flights. It is the responsibility of the pilot to ensure that the bearings are maintained properly.

The Scorpion Motor Bearing Lubrication Kit is now available for maintaining the bearings in your helicopter motor. To view this product, please check out the Bearing Lubrication Kit.

For the best overall combination of quality, performance, and value, use Scorpion Motors in your system!


Scorpion HK-7050-340 Motor Specifications
Stator Diameter70.0 mm (2.756 in)
Stator Thickness50.0 mm (1.968 in)
Number of Stator Arms12
Number of Magnet Poles10
Motor Wind2-3 Turn Delta
Motor Wire2-Strand 1.68mm (14 AWG)
Motor Kv Value340 RPM per Volt
No Load Current (Io)6.20 Amps @ 20 Volts
Motor Resistance (Rm) per Phase0.006 Ohms
Maximum Continuous Current200 Amps
Max Continuous Power10,000 Watts
Peak Current (5 Seconds)300 Amps
Peak Power (5 Seconds)15,000 Watts
Motor Weight1700 grams (59.96 oz.)
Outside Diameter82.4 mm (3.244 in.)
Shaft Diameter9.98 mm (0.393 in.)
Motor Body Length99.8 mm (3.929 in.)
Overall Shaft Length135.0 mm (5.315 in.)
Max Input Voltage50 V
Recommended Timing5 Degrees
Recommended PWM Frequency8 KHz

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