How are wheel hub motors from Alloy Wheel Hub Motor Manufacturers different from normal motors?

The basic idea is the same. In a normal motor, you have a hollow, outer, ring-shaped permanent magnet (sometimes called a stator) that remains stationary, and an inner metal core (called a rotor) that rotates inside it. The rotating rotor has a shaft passing through the middle that drives the machine. But what if you hold the shaft so firmly that it can't spin and turn on the motor? The rotor and stator then have no choice but to swap roles: the normally stationary rotor remains stationary while the stator rotates around it. Try it with an electric toothbrush. Instead of holding the plastic if your toothbrush (broadly speaking, it's connected to the static part of the motor), try holding only the bristles, then turn it on. It's tricky to do because the brush moves so fast, but if you do it right, you'll find the handle wiggling back and forth slowly. This is basically what happens in in-wheel motors. You attach the usually rotating central axle to the static frame of a bike or the chassis of a car. When you turn on the power, the outside of the motor spins and becomes the wheel (or wheels) that power the vehicle forward.

What are the advantages of in-wheel motors?

It depends on whether you are talking about electric bikes or electric cars. Adding a hub motor and battery to your bike is a combination of pros and cons: you add a lot of weight to the bike, but in return you get a pleasant and easy ride when you don't want to pedal. In the case of electric vehicles, the benefits are even more pronounced. The metal weight of a typical car (including the engine, transmission and chassis) can be 10 times the weight of its occupants, which is one reason cars are so inefficient. Replace heavy-duty engines and transmissions with in-wheel motors and batteries, and you'll have a car that's lighter and uses energy more efficiently. Removing the engine bay also frees up a lot of room for passengers and their luggage - you can put the battery behind the back seat!

Vehicles powered by in-wheel motors are much simpler (mechanically less complex) than normal vehicles. Suppose you want to reverse. Instead of using carefully arranged gears, all you have to do is reverse the current. The motor spins backwards, and then spins backwards! What about four-wheel drive? This is a fairly expensive option for many vehicles - you'll need more gears and a complicated driveshaft - but it's an easy fix with in-wheel motors. If you have an in-wheel motor on each of the car's four wheels, you automatically get four-wheel drive. In theory, it's easy enough to have the four motors turn at slightly different speeds (to help cornering and steering) or torque (to get you moving in muddy or uneven terrain).

For more product-related information, please click: Electric Bicycle Motor Manufacturers