Scorpion HK-4540-400KV 8mm shaft Brushless Motor Ultimate

Category: Scorpion Motors
Manufacturer: Scorpion
Manufacturer Scorpion
Our Price

549.00


453.72 Ex VAT

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Availability
72H Stock
Ships in 3-5 Days
SKU HK-4540-400KV-ULT
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Description

Scorpion HK-4540-400KV 8mm shaft Brushless Motor Ultimate is specially designed for a use on 700~800mm blade helicopters running on 12-18cell Li-Po power. This motor represents the most technologically advanced power source ever offered for the electric helicopter.  Special running for 12-18S LiPo battery deliver higher peak power and higher torque with lower running temperature.

Scorpion Competition 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 electro-coated to provide a beautiful, long-lasting finish. The stators are made with 0.2mm lamination 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.

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

Specifications:

  • Stator Diameter:    45 mm (1.77 in)
  • Stator Thickness:    40 mm (1.57 in)
  • No. of Stator Arms:    12
  • No. of Stator Poles:    10
  • Motor Wind:    5T+5T in double Wye (YY)
  • Motor Wire:    1-Strand 1.5 mm
  • Motor Kv:    400KV RPM/Volt
  • No-Load Current (Io/10V):    1.65 Amps
  • Motor Resistance (RM):    0.013Ohms
  • Max Continuous Current:    150 Amps
  • Max Continuous Power:    10000 Watts
  • Weight:    719 Grams (25.35 oz)
  • Outside Diameter:    56.7 mm (2.23 in)
  • Shaft Diameter:    7.98 mm (0.37 in)
  • Body Length:    71.9 mm (2.83 in)
  • Overall Shaft Length:    127.3 mm (5.01 in)
  • Max Lipo Cell:    12S-18S
  • Max Peak Current:    200 A (3 seconds)
  • Max Peak Power:    15000 Watts (3 seconds)
  • Motor Timing:    5deg to 15 deg
  • Drive Frequency:    8kHz

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