Leafmotor

How to make a hub motor for electric bike?
Motorized hub motor can drive your e-bike.Everyone know motor controller,battery,throttle,brake lever etc other accessories.
But for motor,it seams a little mystic.Actually it’s not.
Because of hub motor doesn’t have two carbon brush inside motor,so called brushless. If have,it’s brushed hub motor.
Now we talk about brushless hub motor.
This hub motor is made of copper coil, aluminium / or steel rotor bracket,three hall sensors,

Needs below stuff：
1.1 pcs of Al motor hub and 2 pcs of Al motor covers (made by foundry)；
2.1 pcs of axis (fix on rotor);
3.2 pcs of bearings (fix on each cover);
4.magnet (distribute inside hub);
5.copper coil;
6.aluminium / or steel rotor bracket (made by foundry)；
7.three hall sensor.
8.six screw or more;
9.insulating paper;
10.A-B glue water (fix hall sensors on rotor)
11.8-pin cable (Yellow,blue and green three wires are used for motor phase A,BC…the other five wires are for hall sensor,red is supplied +5V,black to ground.Yellow,blue,green three wires are connected to separate three hall sensors.

Needs tools:
1.screw driver;
2.rubber / or wood hammer;

The important and complicated step of make a hub motor is circle coil.It’s made by machine or handwork.If magnet no change, just change the gauge of the coil wires and/or the turns number of the coils so that change hub motor ‘s power and speed.

After circle coil,then use A-B glue water to fix three hall sensors to each rabbet.Connect 8-pin cable to hall sensor and motor phase A,B,C

Install rotor inside hub,mount each cover.Use bldc motor controller to test hub motor.