| 摘要 |
The wheel (1) has a set of teeth, where each tooth (17) comprises an edge whose functional portion has a profile complying with a parametric double formula comprising parameters u and mu, where mu corresponds to a coefficient of friction at a contact between the edge and an edge of a tooth (18) of another toothed wheel (2) with values comprised between 0.05 and 0.5, and u is a variable that varies in an interval such that the profile is covered by varying the u. The portion and another functional portion of edge of tooth are contiguous. |
