SCORPION HK-4525-520-ULT Scorpion HK-4525-520kv motor -Ultimate

Dati Tecnici - Technical DataScorpion HK-4525-520KV (Limited Edition) [HK_4525_520LE]The Scorpion HK-45 series motor* is designed for using on 700 class helicopters running on 12-cell Li-Po power. This motor represents the most technologically advanced power source ever offered for a 700 class electric helicopter and also produces 20% more torque than the Scorpion popular HK4035 series motors and exceed 89% efficiency.Each of the new HK-4525-520KV Limited Edition motor is wound with a single strand of 1.4mm wire for the highest possible efficiency. This motor is capable of running continuously at an input power of 4450 watts at 100 amps, and can handle peak inputs of 9600 watts and 215 amps for 2 secondsScorpion 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 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 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!*This motor is using 30mm bolt spacing on the mounting with M4 Screw holesHK Patent No. : HK1141674China Patent No. : ZL2010 2 0298704.9Taiwan Patent No. : M399539U.S Patent No. : PendingAll Others Worldwide Patent : PendingSpecificationsStator Diameter 45 mm (1.77 in)Stator Thickness 25 mm (0.98 in)No. of Stator Arms 12No. of Stator Poles 10Motor Wind 10 Turn DeltaMotor Wire 1-Strand 1.4 mmMotor Kv 520KV RPM/VoltNo-Load Current (Io/10V) 1.77 AmpsMotor Resistance (RM) 0.014 OhmsMax Continuous Current 100 AmpsMax Continuous Power 4450 WattsWeight 470 Grams (16.58 oz)Outside Diameter 56.7 mm (2.23 in)Shaft Diameter 5.98 mm (0.24 in)Body Length 53.4 mm (2.10 in)Overall Shaft Length 91.5 mm (3.60 in)Max Lipo Cell 12sMax Peak Current 215A (2 seconds)Max Peak Power 9600 Watts (2 seconds)Motor Timing 5deg to 15 degDrive Frequency 8kHzIncluded in the Box1 x Scorpion HK-4525-520KV Motor* Gold connectors are not soldered nor includedWeight including packaging: 650g .