Urethane packing member with improved geometric configuration

摘要: A packing member has a unique improved geometry particularly adapted to the manufacture of urethane seal having Shore hardness from about 90 100, including an annular body defining central opening and axis, upper sealing portion lower support groove extending into portion, outer outwardly inclined wall, inner inwardly wall bottom wall; radially lips formed adjacent at least groove, lip axially beyond lip. The includes first surface, second surface being angle greater than also intersecting form edge, edge plane, further defined by groove. third grove, intersection with grove forming apex said member.