Gear wheel for e.g. adjustment device in motor vehicle, has annular groove provided at radial distance around openings, where groove decouples opening area of gear hub channel from radially running rods

摘要

The wheel (1) has bars for connecting a gear hub (3) with a gear rim (2) in a radial direction, where the bars are distanced from each other in a circumferential direction. An annular groove (22) is provided at a radial distance around openings (20, 21), where the groove decouples an opening area of a gear hub channel from radially running rods. The annular groove is formed in a circular ring shape with constant groove width and is arranged coaxial to the gear hub channel.