Home > Scorpion Systems > HK 22mm Series
Aero: SII-22mm Series | 22mm Series | SII-30mm Series | 30mm Series I
Heli/EDF: HK 40mm Series | HK 50mm Series
ESC: Commander 15V ESC | Commander 26V ESC | Commander Water Cooled 15V ESC | Commander 50V ESC

Scorpion Brushless Motors HK 22mm Series

Print version

Select Motor Size: HK 2206 | HK 2208 V2 | HK 2213 V2 | HK 2216 V2 | HK 2221 V2

Items listed on this page are now available at reduced prices on the Sale Page. The 'Add to Cart' buttons for all Sale items have been disabled.

The HK Series motors are high Kv versions of the popular 22mm Scorpion Outrunner Motors. The V2 motors include an integral cooling fan. They are designed for applications requiring a fast motor such as Helicopters, Ducted Fans and Hi-Speed Direct Drive applications such as Mini Hotliners and Zagi type flying wings. Lucien at Innov8tive Designs has written a Helicopter Motor Application Guide.

All HK-22mm motors have 9 pole stators and 6 magnet poles using the same 200°C N50 magnets and 180°C magnet wire as all other Scorpion motors. Suitable pinions for helicopter use can be found here.

HK 22mm motors come with 3.5mm male Bullet style connectors already attached, and include a hardware package that contains 3 matching female bullet connectors for your speed controller. Since the HK Series motors are primarily designed for helicopter and ducted fan use, they do not include a prop adapter or cross style backplate mount. If you intend running a prop on an HK 22mm motor, you will need to purchase a prop adapter for a 3.175mm shaft (1/8 inch). Read more about Scorpion Motors and Scorpion ESC. Spare shafts, and motor mounts are available. Keep your bearings in top condition with the Scorpion motor lubrication kit.

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 that the installation and setup is outside Scorpion's control, 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.

Scorpion have commissioned Louis Fourdan to create a special version of his motor calculator. This is an awesome tool which allows you to play around with various power and prop configurations on different motors to see how they will perform. You may download the latest version from here.

Click on image for a larger version.	HK 2206 (Top | HK 2208 V2 | HK 2213 V2 | HK 2216 V2 | HK 2221 V2) Overview HK 2206-3900 HK 2206-5300 The HK-2206 is specifically designed for the new smaller electric helicopters. The HK-2206-3900 is suitable the T-Rex 250 and features a 2.5mm output shaft that fits the stock Trex 250 pinion gears and the Scorpion mod 0.4 pinion set. The HK-2206-5300 is suitable for the Gaui Hurricane 200 and features a 2.3mm output shaft that fits the stock 2.3mm pinion gears. Motor Kv Imax Pmax Max Batt HK-2206-3900: 3900Kv 14A 150W 3S HK-2206-5300: 5300Kv 18A 130W 2S Stator Diameter 22 mm Stator Thickness 6 mm No. of Stator Arms 9 No. of Magnet Poles 6 Motor Wind 24 Turn Delta Motor Wire 7-Strand 0.19mm (32 AWG) Motor Kv 3900 RPM / Volt No-Load Current (Io) 0.83 Amps @ 6 volts Motor Resistance (Rm) 0.064 Ohms Max Continuous Current 14 Amps Max Continuous Power 150 Watts Weight 32 grams Outside Diameter 27.9 mm Shaft Diameter 2.5 mm Body Length 22.6 mm Overall Shaft Length 32.6 mm Stator Diameter 22 mm Stator Thickness 6 mm No. of Stator Arms 9 No. of Magnet Poles 6 Motor Wind 24 Turn Delta Motor Wire 8-Strand 0.21mm (31 AWG) Motor Kv 5300 RPM / Volt No-Load Current (Io) 2.12 Amps @ 6 volts Motor Resistance (Rm) 0.031 Ohms Max Continuous Current 18 Amps Max Continuous Power 130 Watts Weight 34 grams Outside Diameter 27.9 mm Shaft Diameter 2.3 mm Body Length 22.6 mm Overall Shaft Length 32.6 mm £ 25.20 Select wind: HK-2206-3900 (3900Kv) : no stock HK-2206-5300 (5300Kv) This product is on sale on this page
Click on image for a larger version.	HK 2208 V2 (Top | HK 2206 | HK 2213 V2 | HK 2216 V2 | HK 2221 V2) Overview Tech Drawing HK 2208-24 HK 2208-28 HK 2208-34 3 winds are available for this 22mm x 8mm motor: Motor Kv Imax Pmax 2S prop 3S prop HK-2208-24 V2: 3590Kv 21A 220W   HK-2208-28 V2: 3125Kv 18A 200W 6x4 4.7x4.2   HK-2208-34 V2: 2600Kv 15A 160W 6x5.5 5x5   Also available in V1 form as a kit. The drawing is of the V1 motor, V2 drawing coming soon. Click on image for a larger version. Stator Diameter 22 mm Stator Thickness 8 mm No. of Stator Arms 9 No. of Magnet Poles 6 Motor Wind 24 Turn Delta Motor Wire 8-Strand 0.19mm (32 AWG) Motor Kv 3590 RPM / Volt No-Load Current (Io) 1.21A @ 10V Motor Resistance (Rm) 0.061 Ohms Max Continuous Current 21 Amps Max Continuous Power 220 Watts Weight 39 grams Outside Diameter 27.9 mm Shaft Diameter 3.17 mm Body Length 20.5 mm Overall Shaft Length 42.5 mm Stator Diameter 22 mm Stator Thickness 8 mm No. of Stator Arms 9 No. of Magnet Poles 6 Motor Wind 28 Turn Delta Motor Wire 7-Strand 0.19mm (32 AWG) Motor Kv 3125 RPM / Volt No-Load Current (Io) 1.15A @ 10V Motor Resistance (Rm) 0.081 Ohms Max Continuous Current 18 Amps Max Continuous Power 200 Watts Weight 39 grams Outside Diameter 27.9 mm Shaft Diameter 3.17 mm Body Length 20.5 mm Overall Shaft Length 42.5 mm Stator Diameter 22 mm Stator Thickness 8 mm No. of Stator Arms 9 No. of Magnet Poles 6 Motor Wind 34 Turn Delta Motor Wire 5-Strand 0.19mm (32 AWG) Motor Kv 2600 RPM / Volt No-Load Current (Io) 0.85A @ 10V Motor Resistance (Rm) 0.081 Ohms Max Continuous Current 15 Amps Max Continuous Power 160 Watts Weight 39 grams Outside Diameter 27.9 mm Shaft Diameter 3.17 mm Body Length 20.5 mm Overall Shaft Length 42.5 mm £ 25.55 Select wind: HK-2208-28 V2 (3125Kv) HK-2208-24 V2 (3590Kv) HK-2208-34 V2 (2600Kv) This product is on sale on this page
Click on image for a larger version.	HK 2213 V2 (Top | HK 2206 | HK 2208 V2 | HK 2216 V2 | HK 2221 V2) Overview Tech Drawing HK 2213-14 HK 2213-16 HK 2213-20 3 winds are available for this 22mm x 13mm motor: Motor Kv Imax Pmax 2S prop 3S prop HK-2213-14 V2: 3585Kv 32A 330W 6x5.5 4.75x4.5   HK-2213-16 V2: 3200Kv 30A 310W 6x5.5 5.1x4.5   HK-2213-20 V2: 2640Kv 26A 280W 7x5 6x4   Also available in V1 form as a kit. The drawing is of the V1 motor, V2 drawing coming soon. Click on image for a larger version. Stator Diameter 22 mm Stator Thickness 13 mm No. of Stator Arms 9 No. of Magnet Poles 6 Motor Wind 14 Turn Delta Motor Wire 11-Strand 0.21mm (31 AWG) Motor Kv 3585 RPM / Volt No-Load Current (Io) 1.74A @ 10V Motor Resistance (Rm) 0.038 Ohms Max Continuous Current 32 Amps Max Continuous Power 330 Watts Weight 54 grams Outside Diameter 27.9 mm Shaft Diameter 3.17 mm Body Length 25.6 mm Overall Shaft Length 47.5 mm Stator Diameter 22 mm Stator Thickness 13 mm No. of Stator Arms 9 No. of Magnet Poles 6 Motor Wind 16 Turn Delta Motor Wire 10-Strand 0.21mm (31 AWG) Motor Kv 3200 RPM / Volt No-Load Current (Io) 1.60A @ 10V Motor Resistance (Rm) 0.04 Ohms Max Continuous Current 30 Amps Max Continuous Power 310 Watts Weight 54 grams Outside Diameter 27.9 mm Shaft Diameter 3.17 mm Body Length 25.6 mm Overall Shaft Length 47.5 mm Stator Diameter 22 mm Stator Thickness 13 mm No. of Stator Arms 9 No. of Magnet Poles 6 Motor Wind 20 Turn Delta Motor Wire 9-Strand 0.21mm (31 AWG) Motor Kv 2640 RPM / Volt No-Load Current (Io) 1.10A @ 10V Motor Resistance (Rm) 0.063 Ohms Max Continuous Current 26 Amps Max Continuous Power 280 Watts Weight 54 grams Outside Diameter 27.9 mm Shaft Diameter 3.17 mm Body Length 25.6 mm Overall Shaft Length 47.5 mm £ 31.20 Select wind: HK-2213-14 V2 (3585Kv) HK-2213-16 V2 (3200Kv) HK-2213-20 V2 (2640Kv) This product is on sale on this page
Click on image for a larger version.	HK 2216 V2 (Top | HK 2206 | HK 2208 V2 | HK 2213 V2 | HK 2221 V2) Overview Tech Drawing HK 2216-12 HK 2216-14 HK 2216-16 3 winds are available for this 22mm x 16mm motor: Motor Kv Imax Pmax 2S prop 3S prop HK-2216-12 V2: 3350Kv 35A 375W 6x5.5 5.1x4.5   HK-2216-14 V2: 2920Kv 32A 340W 7x5 5.5x4.5   HK-2216-16 V2: 2608Kv 30A 320W 8x4 6x4   Also available in V1 form as a kit. The drawing is of the V1 motor, V2 drawing coming soon. Click on image for a larger version. Stator Diameter 22 mm Stator Thickness 16 mm No. of Stator Arms 9 No. of Magnet Poles 6 Motor Wind 12 Turn Delta Motor Wire 12-Strand 0.21mm (31 AWG) Motor Kv 3350 RPM / Volt No-Load Current (Io) 1.87A @ 10V Motor Resistance (Rm) 0.033 Ohms Max Continuous Current 35 Amps Max Continuous Power 375 Watts Weight 64 grams Outside Diameter 27.9 mm Shaft Diameter 3.17 mm Body Length 28.6 mm Overall Shaft Length 50.5 mm Stator Diameter 22 mm Stator Thickness 16 mm No. of Stator Arms 9 No. of Magnet Poles 6 Motor Wind 14 Turn Delta Motor Wire 11-Strand 0.21mm (31 AWG) Motor Kv 2920 RPM / Volt No-Load Current (Io) 1.35A @ 10V Motor Resistance (Rm) 0.04 Ohms Max Continuous Current 32 Amps Max Continuous Power 340 Watts Weight 64 grams Outside Diameter 27.9 mm Shaft Diameter 3.17 mm Body Length 28.6 mm Overall Shaft Length 50.5 mm Stator Diameter 22 mm Stator Thickness 16 mm No. of Stator Arms 9 No. of Magnet Poles 6 Motor Wind 16 Turn Delta Motor Wire 10-Strand 0.21mm (31 AWG) Motor Kv 2608 RPM / Volt No-Load Current (Io) 1.19A @ 10V Motor Resistance (Rm) 0.048 Ohms Max Continuous Current 30 Amps Max Continuous Power 320 Watts Weight 64 grams Outside Diameter 27.9 mm Shaft Diameter 3.17 mm Body Length 28.6 mm Overall Shaft Length 50.5 mm £ 33.90 Select wind: HK-2216-12 V2 (3350Kv) : no stock HK-2216-14 V2 (2920Kv) HK-2216-16 V2 (2608Kv) This product is on sale on this page
Click on image for a larger version.	HK 2221 V2 (Top | HK 2206 | HK 2208 V2 | HK 2213 V2 | HK 2216 V2) The HK-2221-1630 and HK-2221-2010 motors are specifically designed for 6-cell Li-Po power in 450 class electric helicopters. These motors were developed to take advantage of the new high voltage set-ups that are currently being used for increased power and efficiency. Overview Tech Drawing 2221-6 2221-8 2221-10 2221-12 2221-2010 2221-1630 6 winds are available for this 22mm x 21mm motor: Motor Kv Imax Pmax 2S prop 3S prop HK-2221-6 V2: 4400Kv 52A 525W 6x4 4.75x4.5   HK-2221-8 V2: 3595Kv 45A 425W 6x5.5 5.1x4.5   HK-2221-10 V2: 3000Kv 42A 440W 7x5 6x4   HK-2221-12 V2: 2580Kv 38A 400W 8x4 6x5.5   HK-2221-2010 V2: 2010Kv 28A 590W   HK-2221-1630 V2: 1630Kv 25A 530W   The HK-2221-8 is proving to be an awesome motor for T-Rex 450 size helicopters. Also available in V1 form as a kit. The drawing is of the V1 motor, V2 drawing coming soon. Click on image for a larger version. Stator Diameter 22 mm Stator Thickness 21 mm No. of Stator Arms 9 No. of Magnet Poles 6 Motor Wind 6 Turn Delta Motor Wire 20-Strand 0.21mm (31 AWG) Motor Kv 4400 RPM / Volt No-Load Current (Io) 2.89A @ 10V Motor Resistance (Rm) 0.024 Ohms Max Continuous Current 52 Amps Max Continuous Power 525 Watts Weight 79 grams Outside Diameter 27.9 mm Shaft Diameter 3.17 mm Body Length 33.6 mm Overall Shaft Length 57 mm Stator Diameter 22 mm Stator Thickness 21 mm No. of Stator Arms 9 No. of Magnet Poles 6 Motor Wind 8 Turn Delta Motor Wire 16-Strand 0.21mm (31 AWG) Motor Kv 3595 RPM / Volt No-Load Current (Io) 2.31A @ 10V Motor Resistance (Rm) 0.024 Ohms Max Continuous Current 45 Amps Max Continuous Power 425 Watts Weight 79 grams Outside Diameter 27.9 mm Shaft Diameter 3.17 mm Body Length 33.6 mm Overall Shaft Length 57 mm Stator Diameter 22 mm Stator Thickness 21 mm No. of Stator Arms 9 No. of Magnet Poles 6 Motor Wind 10 Turn Delta Motor Wire 13-Strand 0.21mm (31 AWG) Motor Kv 3000 RPM / Volt No-Load Current (Io) 1.79A @ 10V Motor Resistance (Rm) 0.031 Ohms Max Continuous Current 42 Amps Max Continuous Power 440 Watts Weight 79 grams Outside Diameter 27.9 mm Shaft Diameter 3.17 mm Body Length 33.6 mm Overall Shaft Length 57 mm Stator Diameter 22 mm Stator Thickness 21 mm No. of Stator Arms 9 No. of Magnet Poles 6 Motor Wind 12 Turn Delta Motor Wire 12-Strand 0.21mm (31 AWG) Motor Kv 2580 RPM / Volt No-Load Current (Io) 1.50A @ 10V Motor Resistance (Rm) 0.038 Ohms Max Continuous Current 38 Amps Max Continuous Power 400 Watts Weight 79 grams Outside Diameter 27.9 mm Shaft Diameter 3.17 mm Body Length 33.6 mm Overall Shaft Length 57 mm Stator Diameter 22 mm Stator Thickness 21 mm No. of Stator Arms 9 No. of Magnet Poles 6 Motor Wind 16 Turn Wye Motor Wire 10-Strand 0.21mm (31 AWG) Motor Kv 2010 RPM / Volt No-Load Current (Io) 1.01A @ 10V Motor Resistance (Rm) 0.052 Ohms Max Continuous Current 28 Amps Max Continuous Power 590 Watts Weight 79 grams Outside Diameter 27.9 mm Shaft Diameter 3.17 mm Body Length 33.6 mm Overall Shaft Length 57 mm Stator Diameter 22 mm Stator Thickness 21 mm No. of Stator Arms 9 No. of Magnet Poles 6 Motor Wind 10 Turn Wye Motor Wire 13-Strand 0.21mm (31 AWG) Motor Kv 1630 RPM / Volt No-Load Current (Io) 0.71A @ 10V Motor Resistance (Rm) 0.079 Ohms Max Continuous Current 25 Amps Max Continuous Power 530 Watts Weight 79 grams Outside Diameter 27.9 mm Shaft Diameter 3.17 mm Body Length 33.6 mm Overall Shaft Length 57 mm £ 34.80 Select wind: HK-2221-10 V2 (3000Kv) : no stock HK-2221-8 V2 (3595Kv) : no stock HK-2221-2010 V2 (2010Kv) : no stock HK-2221-6 V2 (4400Kv) HK-2221-12 V2 (2580Kv) HK-2221-1630 V2 (1630Kv) : no stock This product is on sale on this page