Abstract: A motor includes, a stator made of compressed soft magnetic powder, with a plurality of bolt holes formed around a circumferential outer surface of an end of the stator; a cover fitted over the end of the stator, with a plurality of coupling position adjustment parts provided around an end of the cover, the coupling position adjustment parts each comprising a plurality of through holes arranged in a direction in which the cover is fitted over the stator; and a plurality of coupling bolts, each of the plurality of coupling bolts being tightened into each of the bolt holes of the stator through the selected through hole of the associated coupling position adjustment part of the cover such that a position at which the cover is coupled to the stator is adjustable.

Abstract: A rotor for use in an induction motor includes a main body installed to be rotatable by having a gap inside a stator, providing a flow path of magnetic fluxes produced from the coil, and including a plurality of conductors formed on an edge region of the main body; a pair of barriers formed to pass through the main body in a manner to have a semi-spherical shape from a sectional view, base lines of the semi-spherical shape being disposed to face each other; and a plurality of permanent magnets disposed inside the individual barriers. Therefore, the permanent magnets can be easily affixed to the inner side of the individual barriers, and the loss of the magnetic fluxes is minimized, thereby improving the efficiency of the rotor.

Abstract: An oilless bearing type motor with a function of preventing oil leakage, wherein the motor includes an oilless bearing supporting a rotational shaft to be rotatable, includes a rotor of which the rotational shaft is fixed in a central portion. The rotor has an oil collecting indentation around the rotational shaft to collect oil leaked from an oilless bearing side, and is formed by pressing soft magnetic powder. Further, The oilless bearing type motor includes an oil absorption ring formed of a material absorbing a liquid to allow the oil, which moves by a centrifugal force in the oil collection indentation, to be absorbed, and installed in the oil collecting indentation.

Abstract: A motor with a position-adjustable rotor, wherein a rotational shaft of the motor is rotatably supported by a holder assembly, includes a rotor of which the rotational shaft is fixed in a central portion. The rotor has a position adjusting indentation around the rotational shaft, and is formed by pressing soft magnetic powder. Further, the motor includes a position adjusting bushing, inserted into the rotational shaft to be positioned between the rotor and the holder assembly. The position adjusting bushing has an insertion unit inserted into the position adjusting indentation and a locking unit supported at an exterior side of the position adjusting indentation, wherein the insertion unit and the locking unit have different diameters or widths. In the motor, a gap between the rotor and the holder assembly is adjusted by changing a direction in which the position adjusting bushing is inserted into the rotational shaft.

Abstract: A stator for use in a motor, being wound with a coil, includes a main body fixed to a inside of the motor; a plurality of teeth formed to be integrated with the main body and respectively wound with the coil; gap reducers, each of which being formed on upper and lower surfaces of each of the teeth and protruding in a direction to decrease gaps between an upper surface of each of the teeth and the coil and between a lower surface of each of the teeth and the coil; and punch damage barriers, each of which having plane surfaces extending to both sides of each of the gap reducers and connected to both sides of each of the teeth. Further, the stator is manufactured by pressing soft magnetic powder.