Freewing E72216 V2 90mm 130A 12 Fan Blades 3668-1960KV Internal Brushless Motor Power System for Racing Drones

Freewing E72216 V2 90mm 130A 12 Fan Blades 3668-1960KV Internal Brushless Motor Power System for Racing Drones

Description:
- The precision of the mold and the forming process are the key to achieving uniform weight distribution of the blades. Only when each blade is statically balanced and qualified can it be assembled.
- Made of fiber-reinforced nylon material, it is heat-resistant, has high strength, and maintains a certain degree of toughness. It is not easily broken during high-speed rotation. Fan blade wing shape adjustment, increased strength. Reduce the gap between leaves and frames to meet higher power demands. Optimization of culvert frame structure to improve efficiency.
- Note: After the gap between the edge of the fan blade and the inner wall of the duct frame decreases, the blade will experience slight friction with the inner wall during full throttle operation. When the power unit leaves the factory, it undergoes dynamic balance adjustment. Therefore, when you receive the duct power unit, you will find slight wear marks on the inner wall of the duct, which is a normal phenomenon. Please use it normally!
- The top fastening screws use spring washers and anti loosening screw glue to effectively prevent the blades from loosening during high-speed rotation. The motor is fixed with anti loosening screws and washers.
- Powerful power core, continuous output of more awesome: 220℃ temperature resistant high-purity oxygen free copper, 0.2mm ultra-thin silicon steel, 90% high slot rate coil, temperature resistant 200℃ iron boron magnet, for NMB high-speed deep groove ball bearing weight reduction method for high-precision balancing rotor. The instantaneous maximum output power reaches 3200W, and the continuous output power reaches 3000W.
- Each installed power unit will undergo repeated dynamic balancing tests, with pure manual polishing to reduce weight and balance, and finally retested by hand until there is no significant vibration.

Note:
- The duct group has been dynamically balanced. When maintaining the duct power group, please align the fan blades, duct walls, and propeller covers and then disassemble them. After maintenance is completed, aligning the markings and reassembling can effectively avoid damaging the dynamic balance.
- Affected by high temperature and heat conduction of the motor. The screw heats up, and the screw hole area of the duct frame will experience repeated thermal expansion and contraction. After prolonged use, the screws will gradually loosen. After every 50 takeoffs and landings, the motor fixing screws must be tightened again.

Specification:
- Motor type: 3668 - 1960KV internal brushless motor
- Channel type: 90mm second generation 12 fan blades plastic channel fan group
- Net weight: 454g (with connector, cable length of 80mm)
- Working voltage: ≤25.2V
- Instantaneous maximum current: 130A
- Continuous current: 120A
- Instantaneous thrust: 4.0kg
- Continuous thrust: 3.7kg
- ESC recommended specification: ≥120A

Package Included:
- 1 x Power System