Spur gear for a worm gear, tool for manufacturing a spur wheel and the use of a spur wheel

摘要

The present invention relates to a spur gear (10) for a worm gear, with peripheral teeth (16a, 16b), which form a toothing (15), which is designed for this purpose, with a counter toothing (105) of a worm shaft (104) to mesh, wherein the tooth head by knife (d_Head) the teeth (16a, 16b) in the region of a a tooth (16a, 16b) associated first end face (17, 18) has a maximum value, wherein the tooth head by knife (d_Head) of the tooth (16a, 16b) between the two end faces (17, 18) of the spur wheel (10) is changed, and wherein the spur gear (10) as a component produced in a non-cutting manner, in particular is designed as a plastic injection molded part.