Screw gear for wiper drive, comprises crown gear, which is formed partially of plastic, where crown gear is joined with structure made of material with higher thermal conductivity

摘要

The screw gear comprises a crown gear (2), which is formed partially of plastic. The crown gear is joined with a structure (3) made of a material with higher thermal conductivity, which is led to a shaft (5) or bearing of the screw gear (1) in order to discharge heat. The structure comprises a round form.