OIL GUTTER AND TRANSMISSION PROVIDED WITH SAME

Object: To improve lubrication performance without increasing drive loss. Resolution means: An oil gutter (20) comprises: a flow channel-forming section (22) that forms a main flow channel; and supply sections (26, 28) and a re-supply flow channel section (30) for supplying lubricating oil to a second-speed drive gear (G2), a sixth-speed drive gear (G6), and a counter-driven gear (CG'). The oil gutter is configured to: re-introduce the lubricating oil, which has flowed out from the supply section (28) toward the tooth surface of the sixth-speed drive gear (G6) and been scooped up thereby, to the supply section (26) and the re-supply flow channel section (30) via communication apertures (52, 54); and supply the re-introduced lubricating oil to the meshing part of the counter-driven gear (CG') and the counter-drive gear (CG) and the meshing part of the second-speed drive gear (G2) and the second-speed driven gear (G2') for lubrication thereof. As a result, a sufficient amount of lubricating oil can be ensured even in downstream sections of the oil gutter (20) without increasing the amount of lubricating oil.