The overlap ratio indicates how often one point on the grinding wheel periphery is covered by the effective width bd of the dressing tool at a given number of wheel revolutions. The more often this happens, the higher the overlap ratio and the finer dressed the grinding wheel surface will become. An overlap ratio of 4 means, therefore, that the dressing tool has moved axially across the wheel's periphery by its own width in four grinding wheel revolutions.
| Ud |
= |
effective width in mm bd /
traverse feed in mm wheel revolution Sd |
= |
bd /
Sd |
= |
bd * ns /
Vd | |
