In a casing (5), a motor (9) and a scroll mechanism (7) coupled to the motor (9) by a drive shaft (11) are disposed, and the drive shaft (11) is supported by a bearing (41) so as to rotate therein supplying a lubricating oil between the drive shaft (11) and the bearing (41) through which the drive shaft (11) passes. An oil collecting portion (47) is formed at an end portion in the axis direction of the a bearing portion (45) constituted of an outer peripheral surface of the drive shaft (11) and an inner peripheral surface of the bearing (41), which includes an oil groove (51) formed in the periphery direction thereof. An oil passage (49) is formed at the bearing (41). One end of the oil passage (49) is connected to the oil collecting portion (47), while the other end of the oil passage (49) opens at a covered surface of the bearing (41).