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This is the Scorpion V2 Series HK-2221-6 V2 brushless 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.
This is a great motor for the 450 size helicopter class, such as the
T-Rex 450, Blade 400, Thunder Tiger Mini Titan E325 and more. Remember
to determine the correct KV rating for your helicopter, based on the
number of cells you use in your battery, and the gear ratio you have in
your heli.
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 and a cross style
backplate mount with 4 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 3.175mm shaft (1/8 inch).
Scorpion
Motors are built to last, and are backed with a 2-Year warranty against
defects in materials or workmanship. For the best overall combination
of quality, performance, and value, give Scorpion Motors a try!
Note: This motor uses a 3.17mm bore pinion gear sold separately.
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: 6 Turn Delta
Motor Wire: 20-Strand 0.21mm (31 AWG)
Motor Kv: 4400 RPM / Volt
No-Load Current (Io): 2.89 Amps @ 10 volts
Motor Resistance (Rm): 0.016 Ohms
Max Continuous Current: 52 Amps
Max Continuous Power: 525 Watts
Weight: 79 Grams (2.79oz)
Outside Diameter: 27.9 mm (1.097 in)
Shaft Diameter: 3.17 mm (0.125 in)
Body Length: 33.6 mm (1.323 in)
Overall Shaft Length: 57.0 mm (2.244 in)
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