A compressor, comprising: a hermetic container into and from which the refrigerant is sucked and discharged; a stator fixed to an inner surface of the hermetic container; a first stationary member including a stationary shaft having a top end immovably installed in the hermetic container and being elongated into the hermetic container and an eccentric portion eccentric from a center of the stationary shaft; a second stationary member spaced apart from a bottom end of the first stationary member and immovably installed at a low portion of the hermetic container; and a rotary member located inside the stator, including a cylinder-type rotor (231, 232) rotated around the stationary shaft by a rotating electromagnetic field from the stator, a roller applied with a rotation force of the cylinder-type rotor (231, 232), rotated around the eccentric portion with the cylinder-type rotor (231, 232), and a compression space being defined between the roller and the cylinder-type rotor(231, 232), a vane transferring the rotational force from the cylinder-type rotor (231, 232) to the roller, and partitioning the compression space into a suction pocket into which the refrigerant is sucked and a compression pocket in and from which the refrigerant is compressed and discharged, and upper and lower bearing covers (236, 238) forming upper and lower portions of the compression space and rotating around the first stationary member with the rotary member (231, 232), wherein the rotary member is rotatably supported by applying a load to the second stationary member, characterized in that the vane is fixedly formed on the roller to protrude from an outer circumferential surface of the roller to the cylinder-type rotor (231, 232), a vane mounting hole is further provided in the cylinder-type rotor (231, 232) to accommodate the protruding vane, and a bush guiding both side surfaces of the vane linearly reciprocated with the rotation of the cylinder-type rotor (231, 232) and provided in the vane mounting hole, wherein at least a part of the vane mounting hole is not covered with the lower bearing cover such that the oil stored in the hermetic container is supplied thereto. a hermetic container into and from which the refrigerant is sucked and discharged; a stator fixed to an inner surface of the hermetic container; a first stationary member including a stationary shaft having a top end immovably installed in the hermetic container and being elongated into the hermetic container and an eccentric portion eccentric from a center of the stationary shaft; a second stationary member spaced apart from a bottom end of the first stationary member and immovably installed at a low portion of the hermetic container; and a rotary member located inside the stator, including a cylinder-type rotor (231, 232) rotated around the stationary shaft by a rotating electromagnetic field from the stator, a roller applied with a rotation force of the cylinder-type rotor (231, 232), rotated around the eccentric portion with the cylinder-type rotor (231, 232), and a compression space being defined between the roller and the cylinder-type rotor(231, 232), a vane transferring the rotational force from the cylinder-type rotor (231, 232) to the roller, and partitioning the compression space into a suction pocket into which the refrigerant is sucked and a compression pocket in and from which the refrigerant is compressed and discharged, and upper and lower bearing covers (236, 238) forming upper and lower portions of the compression space and rotating around the first stationary member with the rotary member (231, 232), wherein the rotary member is rotatably supported by applying a load to the second stationary member, characterized in that the vane is fixedly formed on the roller to protrude from an outer circumferential surface of the roller to the cylinder-type rotor (231, 232), a vane mounting hole is further provided in the cylinder-type rotor (231, 232) to accommodate the protruding vane, and a bush guiding both side surfaces of the vane linearly reciprocated with the rotation of the cylinder-type rotor (231, 232) and provided in the vane mounting hole, wherein at least a part of the vane mounting hole is not covered with the lower bearing cover such that the oil stored in the hermetic container is supplied thereto.