Patent ID: 8677788

Claim:
A washing machine comprising: a tub comprising plastic and including an opened front, a closed rear wall, and a sidewall extending from a periphery of the rear wall to the opened front, wherein the tub is cylindrical; a drum mounted rotatably in the tub; a stator including a magnetic core having a stack of layers of magnetic material and a winding part having a coil wound thereon for forming a magnetic force; a bearing housing comprising metal, and including a cylindrical aperture therethrough defining an inner circumference, wherein the bearing housing is mounted proximate to a central portion of the rear wall of the tub by insert injection molding, and protrudes toward the stator; a shaft passing through the bearing housing, the shaft having one end directly connected to the drum; at least one bearing mounted between the shaft and the bearing housing for supporting the shaft; and a rotor comprising a sidewall, a rear wall and a permanent magnet fixed to the sidewall of the rotor, wherein the rotor is coupled to the shaft.