hub and wheel motor

A hub motor to me means a motor which is at the hub of the wheel, so the wheel is the rotor of the motor, maybe through gearing etc...

A wheel motor is... errrmmmm a motor driving a gearbox/shaft with the wheel attached, I guess?

John.

Are you talking about powered bicycles? If so, I'd say a hub motor is fitted to the hub, and a wheel motor mounts up behind the saddle, with a roller which bears against the top of the tire to transfer the power.

Can you put you question in context?

I take a hub motor and wheel motor to be the same thing....

From Wikipedia:

A hub motor is an electric motor built directly into the hub of a wheel. A purported advantage of this design is that no additional transmission system is needed, thereby increasing the efficiency of the drive system. However, because electric motors are most efficient at high rates of revolution, direct drive hub motors tend to be inefficient. Integrated planetary gear drivetrains are sometimes included, but re-introduce transmission losses. They are commonly found on motorized bicycles. Hub Motor Electromagnetic fields are supplied to the stationary windings of the motor. The outer part of the motor follows, or tries to follow, those fields, turning the wheel to which it is attached. Energy is transferred to a brushed motor through physical contact of brushes to the rotating shaft of the motor. Energy is transferred to a brushless motor electronically, requiring no physical contact between stationary and moving parts. Brushless motor technology is more expensive, but most are more efficient and longer-lasting than brushed motor systems. Most of the hub motors made in China are designed for bikes with Chinese dimensions but these conversion kits are made to suit western bike dimensions. Hub motors are not a new idea. In 1902 Ferdinand Porsche at age 27 working for Lohner developed hub motors which initially ran on lead acid batteries and soon after had a petrol generator to charge the batteries: the first Hybrid vehicles. [2] Hub motors can also be found on buses.

The proposed Zap-X Electric Vehicle envisioned to enter the market in 2010 "would use high-tech electric hub motors at all four wheels, delivering 644 horsepower to the ground from a lithium-ion battery pack. The hub motors would eliminate the need for transmission, axles and conventional brakes, opening up space beneath the floor for a giant battery pack."^[1]

Can you tell where these two types are quoted?

Do do seem the same, unless:

Wheel motor: the stator is the inner part (axel), the rotor is the outer part (rim).

Hub motor: The stator is the outer part (chasis), the rotor is the inner part (axel).

thanks a lot for your helping

what is hub motor? what is wheel motor? what are the differences between them?

If you are talking with regards to heavy earthmoving plant then there may be a difference.

A hydraulic hub motor is a normal hydraulic motor with beefed up nose (shaft) bearings (usually taper bearings). This enables the motor to act as the axle of the machine.

A hydraulic wheel motor can be as above BUT may be designed to fit behind a planetary reduction box and brake cardon shaft. The reduction box, in this case, takes the load of the machine and the hydraulic motor gets its name cos' it's driving the wheel (albeit indirectly)!

I remember In the old days we had a moped calles solex. These had a 2 stroke single cylinder engine sitting under the handlebars with a lever poking up. You could "engage" this engine to touch the front tyre of the moped with its rubberized drive wheel.

This is what I would call a wheel motor. This is not to say that there are no different versions or interpretations elsewhere.

Hub motors are explained above in great detail, they just sit in, or are, the hub of your wheel.

Sorry, but you must be very brave to own up to owning a Velo-solex they were sooooo unkool, I think the French built them which explains a lot I'm afraid I have to agree with you on the rest. Have a great day in sunny England

I must be indeed, I also owned up to owning a harley with a problem, you should have seen the flack I got for that

http://cr4.globalspec.com/thread/13928#newcomments

Good to see you've moved on to better things

Hub motor has direct electronics embeded for controls of RPM , applicable in electric vehicles and other were compactness is desired , wheel motor .......hmm... is same , it is just other name for non technical simplifications , they have in built precise electronic control plus planetery gear system for better control over all RPM range and specially represent automobile only and not other applications say industrial , i remember when certain service manuals in computers for CD ,FDD ,HDD refered wheeled motor directing for media drives instead of hub motors or just motors some 12 years ago

There are several companies that develop wheel motors for the mining industry GE is one of them, try this link www.mining-technology.com/contractors/transportation/getrans

Jim

Please See somewhere in CR4:
http://cr4.globalspec.com/thread/9944/RPMs-and-Hub-Motors

Hub Motor for Electric Vehicles(Rotor on the outside) http://globalspec.ip09.com/rd/9z1z2hg1opmkd54retqto1o022g6d5ncje587prjbc0
(Electrical Engineering)
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