Patent ID: 7954612

Claim:
A driving-force transmission apparatus comprising: an input-side rotating member driven by a driving source; an output-side rotating member having a coaxial structure with the input-side rotating member; a friction clutch arranged between the input-side rotating member and the output-side rotating member; a stationary member having a coaxial structure with the input-side rotating member and being capable of accommodating the input-side rotating member, the output-side rotating member and the friction clutch; a lubricant accommodation space formed in the stationary member; and a pump for supplying the friction clutch with lubricant, wherein the stationary member has a cylindrical part for holding a bearing part supporting the output-side rotating member, and the pump is arranged on an inner circumferential side of the cylindrical part, wherein the bearing part consists of a pair of bearings disposed in an axial direction of the cylindrical part, and the pump is arranged between the bearings, and wherein the cylindrical part has a lubricant conductive passage formed therein between the bearings, for introducing the lubricant into the pump.