ROTARY COMPRESSOR

A rotary compressor (1) includes a hermetic housing (2) that forms an outer shell, an electric motor (5), a compression mechanism (6) accommodated in the hermetic housing (2) and configured to compress a refrigerant by using a driving force from the electric motor (5), and a drive shaft (14) connecting the electric motor (5) and the compression mechanism (6) and configured to rotate about a center axis extending in a vertical direction. The compression mechanism (6) includes an upper rotor (33) connected to the drive shaft (14) and accommodated in an upper cylinder chamber (31), an upper cylinder main portion (34) defining an outer side of the upper cylinder chamber (31) in a radial direction, and an upper bearing portion (35) rotatably supporting the drive shaft (14) and defining the upper cylinder chamber (31) in the vertical direction. The compression mechanism compresses the refrigerant between the rotating upper rotor (33) and the upper cylinder main portion (34). The upper bearing portion (35) and the upper cylinder main portion (34) are formed of a composite material made by reinforcing a resin with reinforced fibers.