Patent ID: 8662253

Claim:
A lubricating oil feeding structure for feeding lubricating oil from a lubricating oil supply source to a lubricating oil passage of a transmission shaft and to a bearing supporting a shaft end of a transmission shaft, the lubricating oil being fed through a space formed in a casing arranged outside the bearing, and the lubricating oil feeding structure being arranged so as to face the bearing and the lubricating oil passage extending in the transmission shaft from the shaft end of said transmission shaft, the lubricating oil feeding structure comprising: an oil guide part positioned within a space for accommodating the transmission shaft, wherein the oil guide part includes: a bottomed cylinder, with one end thereof having an opening, a flange that flares outwardly from the opening of the bottomed cylinder, and oil holes adapted for communicating the oil between an inside and an outside of said bottomed cylinder, the oil guide part being arranged in the space for accommodating the transmission shaft, so that the flange of the oil guide part comes into contact with an outer race of said bearing, wherein the flange of the oil guide part includes: a single flat wall, acting as a detent, and extending in a radial direction of the flange, wherein the single flat wall includes a projecting part projecting from a circumferential edge of the flange, and fitting into a groove formed in said casing.