Gearbox has gear wheel, which comprises multiple teeth, where each tooth of gear wheel has hollow area, and hollow area in each tooth is closed hollow chamber or pass throughable hollow recess

摘要

The gearbox (1) has a gear wheel (2), which comprises multiple teeth (3,3 '), where each tooth of the gear wheel has a hollow area (4). The hollow area in each tooth is a closed hollow chamber or a pass throughable hollow recess. The gear wheel is made of an elastic deformable material, particularly plastic. The hollow area of the tooth is formed as a triangle with rounded edges in the cross section.