E Bike Motor Winding

The bike s freewheeling capabilities will be reduced because when the wheel spins the magnets will be passing windings in the motor always. Electric bike hub motor how to replace a hall effect sensor. Years of posted experiments by real e bikers on endless sphere have produced a commonly held rule of thumb to avoid heating your e bike motor to above 95c 200f.

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This creates more resistance in the wheel.

E bike motor winding. To give you an example if an e bike has 750 watt power e bike motor nominal and it uses a 48v controller with peak current of 12 amp then this motor can deliver only 48vx12 576 watt power. Still have this motor still works 8x7 repost old file was corrupted. The electric bike motor then uses a planetary reduction gear inside the motor to reduce the rpm to the correct speed for a bike wheel. The freewheeling capabilities will be further reduced or rather further reduced on purpose to ensure high speeds aren t achieved that could create a reverse break down situation within parts of the controller.

What that means is the controller will apply higher amps to the electromagnets in the stator until the permanent magnets in the rotor are spinning fast enough to reach the motors top speed the so called kv of the winding click here for motor tech learn the terms the faster the magnets pass by each other the shorter the pulses of watts are that are applied to the. Stator winding by electrex world duration. E bike motor magnets are a grade that is slightly higher than the cheapest variety because they are often subjected to higher temps than they should be by unsuspecting customers. E bike hub motor factory visit duration.

To do this some controller systems use hall effect sensors inside the hub which track the motor s position. This article first appeared in electric bike report in june of 2013. In a geared transmission the motor is often spinning over 3000 rpm and hence a much smaller motor can deliver the same power. The power density available from an electric machine is directly proportional to the speed between the magnets and the winding so in order to get adequate power and torque output the motor has to be large.

No sound few extra pictures. There have been some very creative home brew e bikes that used any motor. Electric bike motor an electric bike motor on an electric bike can be any kind of electric motor. Since then we ve made some changes to our motor selection our direct drive motors are now all high torque 6x9 wound so they run slower approximately 15mph at 36v or 20mph at 48v and our geared motors have been replaced by a 500w version approximately 20mph at 36v or 28mph at 48v.

Brushless motors use electronic controllers instead of brush systems to control the timing and distribution of power to the motor. Most e bikes i see are designed wrongly or they use under rated controllers as most of the first time e bike buyers only check motor power.