Drive coupling

A drive coupling comprising an integral rubber article having a solid elongate body section having a plurality of longitudinal ribs therealong, wherein said ribs are spaced equidistantly around the periphery of said body section and are parallel to each other such that one end of said body section is suited to be inserted into a complementarily shaped grooved bore of a driven member in a splined driving relationship, the other end of said body section being of larger diameter and having a grooved recess therein which is adapted to sildably receive a drive member in a splined driving relationship, wherein the axis of said recess is coaxial with the axis of said elongated body section, and wherein the rubber material of which said body section is made has a Shore A hardness of at least 75.