Damper with hydraulic end stop

A damper comprising:

• a pressure tube defining a first end and a second end opposite to the first end;
• a piston slidably disposed within the pressure tube, the piston defining a rebound chamber and a compression chamber within the pressure tube;
• a piston rod adapted to reciprocate with the piston, wherein the piston rod is partially received within the pressure tube;
• a first collar disposed around the piston rod;
• a second collar disposed around the piston rod and axially spaced apart from the first collar;
• and
• a sealing ring slidably disposed around the piston rod and disposed between the first and second collars, the sealing ring including:
• an inner surface facing the piston rod, the inner surface including a plurality of concave surfaces and a plurality of convex surfaces, each of the plurality of concave surfaces being located adjacent to a corresponding convex surface of the plurality of convex surfaces;
• an outer surface opposite to the inner surface, the outer surface defining at least one groove;
• and
• an upper surface extending between the outer and inner surfaces, the upper surface defining a plurality of channels.

A damper comprising:

• a pressure tube defining a first end and a second end opposite to the first end;
• a piston slidably disposed within the pressure tube, the piston defining a rebound chamber and a compression chamber within the pressure tube;
• a piston rod adapted to reciprocate with the piston, wherein the piston rod is partially received within the pressure tube;
• and
• a first collar disposed around the piston rod;
• a second collar disposed around the piston rod and axially spaced apart from the first collar;
• a snap ring disposed adjacent to the second collar and extending along a circumference of the piston rod, wherein the snap ring is at least partially received within a ring groove of the piston rod;
• and
• a sealing ring slidably disposed around the piston rod and disposed between the first and second collars, the sealing ring including:
• an inner surface facing the piston rod, the inner surface including a plurality of concave surfaces and a plurality of convex surfaces, each of the plurality of concave surface being located adjacent to a corresponding convex surface of the plurality of convex surfaces;
• an outer surface opposite to the inner surface, the outer surface defining at least one groove;
• and
• an upper surface extending between the outer and inner surfaces, the upper surface defining a plurality of channels.