Plastic gear transmission with a plastic wheel and manufacturing method

The invention relates to a plastic gear (6), in particular worm gear, with adjacently arranged in the circumferential direction of teeth (9, 10). According to the invention it is provided that the surface (12, 14) at least one of the teeth (8, 9) has a grease reservoir is structured forming. Furthermore, the invention relates to a transmission (3) as well as a method for introducing a a fat depot-forming structure in a surface (12, 14) of at least one tooth (8, 9) of a plastic worm gear (6).