Kontronik Pyro 750-45 450 RPM/V Outrunner Motor (Long shaft )

The PYRO 750 continues the heritage of the KONTRONIK PREMIUM LINE. It is compact, extremely powerful, and has a power output of 4.5KW. The PYRO 750 surges past the performance of the PYRO 700, approaching the levels previously set by the PYRO 800.
 
The unique design of the PYRO 750 provides a shaft with two sizes. The internal shaft is 8mm, allowing the use of 8mm bearings for longer life, and an external shaft of 6mm that allows it to easily fit most helicopters.
 
If you need ultimate power for a 700 class helicopter, look no further as the PYRO 750 is the new powerhouse for the 700 class.
 
The PYRO in short:
 Neodym magnets, heat resistent up to 150 degree C

• Specialized wire, heat resisten up to 300 degree C
• Perfectly balanced
• Optimized metal sheets
• Optimized ventilation

 Specs:

• RPM/V : 450
• Shaft diameter: 6mm
• Free shaft length:  38.5mm
• Weight: 453 grams
• Continuous: >4 kW
• Max RPM/Min: 25,000
• Poles: 14
• Outside Diameter: 55.6mm
• Motor Length: 61.5mm
• Bolt Spacing: 30mm
• Screw: 4xM4
• Max Efficiency: >90%