Patent ID: 7384360

Claim:
Thrust washer for planet gears of a planetary gearbox, with the thrust washer being adapted to be arranged with a positioning bore hole on planet gear pins fixed in a planet carrier so that thrust washers contact both sides of the planet gears, which are mounted rotatably on the planet gear pins via a rolling bearing, wherein for supplying lubricant the planet gear pin is provided with an axial lubricant through hole and a radial lubricant through hole branching off from this axial hole and the thrust washer is provided with axial through holes, the thrust washer is produced from a tempered, cold-rolled strip with a flatness of ≦0.03 mm and exhibits a hardness of 370-580 HV, the thrust washer positioning bore hole is provided connected with the axial through holes which are uniformly spaced apart from each other in a peripheral direction and which expand circumferentially from narrowed sections as they extend outwardly in a radial direction.