Two-cylinder hermetic compressor

A two-cylinder hermetic compressor comprising:

• an electric motor unit and a compression mechanism unit in a sealed container,
• wherein the electric motor unit and the compression mechanism unit are connected to each other by a shaft,
• the electric motor unit includes a stator fixed on an inner surface of the sealed container and a rotor that rotates in the stator,
• a first compression mechanism unit and a second compression mechanism unit are provided as the compression mechanism unit,
• the first compression mechanism unit includes a first cylinder and a first piston provided in the first cylinder,
• the second compression mechanism unit includes a second cylinder and a second piston provided in the second cylinder,
• a main bearing is disposed on one surface of the first cylinder and an intermediate plate is disposed on another surface of the first cylinder,
• the intermediate plate is disposed on one surface of the second cylinder and an auxiliary bearing is disposed on another surface of the second cylinder,
• the shaft includes a main shaft portion to which the rotor is attached and which is supported by the main bearing, a first eccentric portion to which the first piston is mounted, a second eccentric portion to which the second piston is mounted, and an auxiliary shaft portion supported by the auxiliary bearing, and
• a diameter of the auxiliary shaft portion supported by the auxiliary bearing is set larger than a diameter of the main shaft portion supported by the main bearing,
• wherein the shaft further includes a thrust receiving portion on a side of the second eccentric portion facing the auxiliary shaft portion.