Patent ID: 7762724

Claim:
A compressor bearing for supporting a rotor shaft of a compressor, wherein a first oil groove is formed in a bearing surface on the side opposite to a bearing load acting direction and a second oil groove is formed in the bearing surface at a position adjacent to said first oil groove in an anti-rotational direction, a circumferential length of said second oil groove being larger than that of said first oil groove, said bearing comprising: a first oil channel communicating with said first oil groove to supply oil to the first oil groove from the exterior; a second oil channel communicating with said second oil groove to supply oil to the second oil groove from the exterior; and a common oil supply source disposed outside said bearing to supply oil to both said first oil channel and said second oil channel, wherein a minimum value of a sectional area perpendicular to the longitudinal direction of said second oil channel is smaller than a minimum value of a sectional area perpendicular to the longitudinal direction of said first oil channel.