Retaining ring design

A retaining ring, comprising:

• an annular body comprising:
• an upper surface;
• a lower surface;
• an outer surface connected to the upper surface and the lower surface;
• and
• an inner surface connected to the upper surface and the lower surface, wherein the inner surface comprises:
• a first planar surface having a first angle relative to a central axis;
• a second planar surface having a second angle relative to a central axis;
• and
• a third planar surface disposed between the first planar surface and the second planar surface.

A retaining ring, comprising:

• an annular body comprising:
• an upper surface;
• a lower surface;
• an outer surface extending between the upper surface and the lower surface;
• an inner surface extending between the upper surface and the lower surface, the inner surface comprising:
• a first tapered portion disposed at a first angle relative to a central axis;
• a second tapered portion having an array of planar facets that are positioned about the central axis, the second tapered portion disposed at a second angle relative to the central axis and coincident with the lower surface at an adjoining edge, wherein the second tapered portion and lower surface define a third angle that is either acute or obtuse;
• a plurality of channels disposed within the annular body, wherein the annular channels have a first opening at the inner surface and a second opening at the outer surface;
• and
• an array of planar facets that are positioned about the central axis.