Patent attributes
The invention provides a differential gear which can effectively prevent a drag noise of a clutch plate by a simple structure. In a differential gear (10) provided with a clutch means (16) having an inner pawl clutch plate (12) integrally rotating with a side gear (11), and an outer pawl clutch plate (14) integrally rotating with a differential case (13), a main communication path (41) and a radial communication path (44) communicating a bottom of the side gear (11) with a fitted portion (17) between the side gear (11) and the clutch plates (12, 14) is formed in the side gear (11), as a lubricating oil supplying means (40) for supplying a lubricating oil within the differential case (13) to a portion between sliding surfaces of both the clutch plates (12, 14) from the fitted portion (17) between the side gear (11) and the clutch plates (12, 14).