This High Speed Motor with short axis. It equipped with 2 bearing bushings inside to provide a smooth rotation.
CNC aluminum heatsink cover and metal casing gives a good cooling. 
New design with a powerful fan installed at the end of the motor, to increase the heat ventilation with 35-45%.
Comparing with standard version, the heat limit of it extends to 180℃ rather than 150℃.
High conductivity copper wire and high magnetism magnet gives a better torque, in which lets the rotation faster and increase the rate of fire.
Come with a heat treated harden bevel gear. 
Suitable for version 2 gearbox or any compatible usage.

HQA High Speed Cooler Motor – Short