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Home > Electrical Components > Brushless Motors

Scorpion HK-2221-8 V2

Scorpion HK-2221-8 V2

Item Id: HKII-2221-8

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$79.95

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Description

Here it is, the new V2 series HK-2221-8 motor. Improvements include better cooling with the integrated centrifugal blower fan, higher efficiency with a new stator design and a new threaded-on flux ring for more solid construction.

Scorpion HK Series 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 anodized to provide a beautiful, long-lasting finish. The stators are made with 0.2mm laminations 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 N-50EH style, which are rated for operation at 200 degrees C (392 F), making a motor that is virtually impossible to burn up in normal use.

All Scorpion HK Series 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, heatshrink to cover the bullet connectors and mounting screws. Since the HK series motors are primarily designed for Helicopter and Ducted Fan use, they do not include a prop adapter. If you intend on running a prop on this motor, you will need to purchase a prop adapter for a 3.17mm shaft (1/8 inch). You can order the 3.17mm Prop Adapter here on our website.

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.

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

Specifications

Stator Diameter ............................ 22.0 mm (0.866 in)
Stator Thickness ........................... 21.0 mm (0.827 in)
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) ................. 2.31 Amps @ 10 volts
Motor Resistance (Rm) ............................. 0.024 Ohms
Max Continuous Current ............................... 45 Amps
Max Continuous Power ................................ 475 Watts
Weight .......................................... 79 Grams (2.79oz)
Outside Diameter .......................... 27.9 mm (1.097 in)
Shaft Diameter ............................. 3.17 mm (0.125 in)
Body Length ................................. 37.9 mm (1.492 in)
Overall Shaft Length ...................... 58.7 mm (2.311 in)

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Since 2008, RC Aerodyne has provided customers around the globe with top quality scale RC aircraft, helicopter kits and an incredible selection of hobby parts and upgrades. Located in Kent, Washington just south of Seattle, we offer a wide variety of great products from many excellent brands selected by our seasoned RC experts to guarantee you both top performance and top value. Many of our scale products are officially licensed replicas produced with input and approval from major aircraft manufacturers such as Boeing, Bell Helicopter and Hawker Beechcraft. We recently introduced our own Chaos series of 450 to 700 size RC helicopter mechanics, parts compatible with Align T-Rex, offering phenomenal flight performance and a perfect fit for many of our most popular scale fiberglass fuselages.