Patent ID: 8469825

Claim:
An elastic coupling comprising a first body and a second body, said first body and said second body being able to rotate about a common axis, said first body being associated with said second body by means of a plurality of springs, each of said springs having a first end associated with said first body and a second end associated with said second body, wherein: the ends of said springs are associated with respective ones of the bodies by floating engagement means, said first body is identical to said second body; each of said bodies comprises a main portion provided with a plurality of axial protrusions; each of said axial protrusions comprises at least one transverse seat, which is suitable to accommodate one of said ends of one of said springs; each end of said springs is provided with a spring supporting base, said base comprises an engagement surface constituted by a spherical dome, said spherical dome rests against a bottom surface of said transverse seat, said bottom surface of said transverse seat is correspondingly spherical; said spring supporting base comprises a cavity constituted by a dead hole, said cavity accommodating lubricant; said dead hole is open onto said spherical dome; and said lubricant is inserted in said cavity during the assembly of the coupling.