A planetary gear system with a planetary carrier and a plurality of planetary gearwheels which are mounted on the planetary carrier by way of planetary gear bolts and planetary bearings. Each planetary gear bolt has at least one bore for supplying the planetary bearings with lubricating oil. The at least one bore is associated with an oil-catching element of a component fixed onto the planetary carrier, and the component is designed, in addition, to be a pulse generator for a rotational speed sensor. The pulse generator has a plurality of raised areas which are arranged around the circumference of the component and which extend in the axial direction.