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A wheel motor for a vehicle has an electric motor which is arranged in a central space defined in a wheel, to rotatively drive the wheel. A gear reducer is also arranged in the central space of the wheel. The electric motor includes a housing fixed to the vehicle body, a stator secured to the housin

A wheel motor for a vehicle has an electric motor which is arranged in a central space defined in a wheel, to rotatively drive the wheel. A gear reducer is also arranged in the central space of the wheel. The electric motor includes a housing fixed to the vehicle body, a stator secured to the housing, a rotor rotatably fitted in a central space defined in the stator to generate the rotative driving force during rotation thereof, and an output shaft connected through the gear reducer to the rotor to be rotatively driven thereby, for transmitting the rotating output from the rotor through the gear reducer to the wheel. The output shaft extends through an axial through hole formed in the final stage gear of the gear reducer and an axial through hole formed in the rotor, and is rotatably supported by opposite end portions of the housing. An electric circuit for driving the electric motor is arranged in the central space of the wheel, together with the electric motor.

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A wheel motor being installable on an object having a main body, comprising: a wheel having an inner peripheral portion defining a central space therein; an electric motor arranged in said central space of said wheel, for generating a rotating output for rotatively driving said wheel; a gear reducer

A wheel motor being installable on an object having a main body, comprising: a wheel having an inner peripheral portion defining a central space therein; an electric motor arranged in said central space of said wheel, for generating a rotating output for rotatively driving said wheel; a gear reducer arranged in said central space of said wheel; said electric motor including a housing fixed to said main body, a stator secured to said housing and having an inner periphery defining a central space therein; a rotor rotatably fitted in said central-space of said stator, for generating said rotating output during rotation thereof, and an output shaft connected through said gear reducer to said rotor to be rotatively driven thereby, said output shaft being drivingly connected to said wheel, for transmitting said rotating output from said rotor through said gear reducer to said wheel, said gear reducer including a final stage gear having an axial through hole formed therein in coaxial relation to an axis of rotation of said final stage gear, and at least one reduction gear means interposed between said rotor and said final stage gear and disposed in eccentricity with said output shaft; and an electric circuit arranged in said central space of said wheel and mounted at said housing of said electric motor so as to be separated from said gear reducer, for driving electric motor.