Dual layered bushing

A bushing which comprises

• a cylindrical sleeve, said cylindrical sleeve having an outer wall, and
• a hollow core through said cylindrical sleeve defining an inner wall of the cylindrical sleeve;
• said hollow core extending longitudinally from a top of the cylindrical sleeve to a bottom of the cylindrical sleeve;
• said cylindrical sleeve comprising a first compressively resilient material wherein the first compressively resilient material has a durometer value of from about 80 to about 100 on the Rockwell M scale;
• a plurality of substantially equally separated, parallel grooves which do not form a spiral through the outer wall extending around a circumference of the cylindrical sleeve;
• a cylindrical outer tube attached around the circumference of the outer wall of the cylindrical sleeve extending from the top of the cylindrical sleeve to the bottom of the cylindrical sleeve, said outer tube having a smooth outer wall and an inner wall having a plurality of substantially equally separated parallel projections which do not form a spiral extending outwardly from the inner wall of the outer tube and extending around a circumference of the inner wall of the outer tube;
• the projections from the inner wall of the outer tube being attached to and mating with the plurality of grooves through the outer wall around the circumference of the cylindrical sleeve, wherein the cylindrical outer tube is attached around the circumference of the outer wall of the cylindrical sleeve by an adhesive or bonding agent;
• the cylindrical outer tube and the projections comprising a second compressively resilient material different from the first compressively resilient material wherein the second compressively resilient material has a durometer value of from about 40 to about 80 on the Shore A scale.