ROTATING-DISK PACKING AND CUTTING METHOD THEREOF

摘要

In the process for the machining of a rotary flat fluid-tight seal by grinding, the working surface of the grinding wheel has imparted to it an inclination with respect to the annular surface of the seal, in such a manner as to leave behind on the said surface of the seal traces which are termed "in half-sun" at the intersection of the grinding wheel and of the seal along a chord. The inclination is provided by modifying the height of one of two headstocks of a grinding machine and by pivoting the table of the grinding machine in a horizontal plane. The fluid-tight seal thus produced provides a leakage flow of lubricating fluid and thus can be used as an axial thrust seal and bearing of a rotary shaft, especially for pumps.