What makes great an electric motor?

The main parameter that determines the performance of an electric engine is torque. A low current, a high torque, and an instant start with high torque are good features for electric hub motors, these are the ones that are mounted inside the wheel.
As electric skateboards are always used in conditions with load, we have to understand the importance of the acceleration performance, the engine starting torque, in order to guarantee the skateboard performance in special situations, such as riding on steep slopes, more load weight, or pavement conditions in poor condition.

Users often ask only for the power of the engine, and it is true that a high Kw value of the electric skateboard is important but it is not the only parameter to consider. When we are evaluating different types of electric motor on the shaft we should also pay special attention to the materials of the motor.

Parameters of the electric motor

The main parameter that determines the performance of an engine is the torque.
A low current, a high torque, and an instant start with high torque are good features for electric motors that are mounted inside the wheel.
As the electric skate is always used in conditions with load, we have to understand the importance of the acceleration performance, the engine starting torque, in order to guarantee the skateboard performance in special situations, such as rolling on steep slopes , more load weight, or pavement conditions in poor condition.
Users often ask only for the power of the motor, and it is true that a high Kw value of the electric skateboard is important but it is not the only parameter to consider. When we are evaluating different types of electric motor on the shaft we should also pay special attention to the materials of the motor.

Electric motor parts

There are several factors that affect the quality and price of hub motors:

1. neodymium magnet
2. copper wire
3. bearings

Neodymium magnet (NdFeB Magnets)
are the permanent magnet material. It directly determines the life of the motor. In the hub motor there is a parameter called “coercive force” that refers to the degree of magnetization saturation of the magnetic field, which returns to zero when in the external magnetic field the magnetic induction intensity is reduced, a process that is commonly called «Demagnetization». The engine will have demagnetization after heating. The standard motor uses 3 mm NdFeB magnets to cover the entire rotor, and in some other brand engines 2 mm motors are used to reduce the cost, not even enough to cover the entire rotor.

Copper wire
as is known, copper is a very expensive material. The amount of copper used in the 12-pole stator and the 18-pole stator is different. If less copper wire is used at high speed, we will have heating problems. If the heat cannot dissipate effectively, the potential risk of engine failure rises, and the engine can be burned.

Bearings
They are also very important element for the life of the electric motor. A good quality bearing does not allow the motor to rub when it is running. If you use a skateboard with low quality bearings, when the engine is turning at high speed it will produce a friction sound, causing the stator and rotor to wear, causing blockage and therefore loss of control.

In order to ride safely and ensure reliable and long-lasting transport, we must ensure that we have the best technology and quality of materials in all parts of our products but especially in engines and brakes. Tomahawk skateboards gives you the quality assurance that other products that may appear to be similar but have been designed and manufactured solely on price and cannot offer the same quality levels.