Thrust bearings

Claim 1

A CLUTCH MECHANISM COMPRISING A ROTARY MEMBER FOR ACTUATING THE CLUTCH HALVES, A CONTROL OR DECLUTCHING FORK, AND A THRUST BEARING COMPRISING ELONGATED ROLLING ELEMENTS, A CAGE FOR THE ROLLING ELEMENTS, A FIRST BEARING RACE MEMBER AND A SECOND BEARING RACE MEMBER, THE RACE MEMBERS BEING RELATIVELY ROTATIVE AND DISPLACEABLE RADIALLY RELATIVE TO EACH OTHER AND HAVING PLANE FACES BETWEEN WHICH THE TOLLING ELEMENTS ARE ENGAGED, A DISC CONNECTED TO THE FIRST MEMBER AND DISPOSED ADJACENT SAID ROTARY MEMBER, THE BEARING FURTHER COMPRISING A LUBRICANT RETAINING HOUSING CONNECTED TO THE SECOND RACE MEMBER, THE HOUSING HAVING AN OUTER CYLINDRICAL WALL DIMENSIONED TO PERMIT A LIMITED DEGREE OF RADIAL DISPLACEMENT OF THE TWO RACE MEMBERS, AND A PAIR OF AXIALLY SPACED SO AS TO CREATE, OVER A REDUCED DIAMETER, A BEARING SO AS TO CREATE, OVER A REDUCED DIAMETER, A CENTRIFUGAL LUBRICANT RETAINING POCKET, THE FORK BEING FITTED WITH A THRUST RING OF ANNULAR DISHED CONFIGURATION FOR RECEIVING THE BEARING HOUSING, THE INTERNAL DIAMETER OF SAID THRUST RING BEING AT LEAST EQUAL TO THE DIAMETER OF THE CENTRE OPENING OF THE ADJACENT WALLS OF THE BEARING HOUSING AND AT THE MOST EQUAL TO THE INNER DIAMETER OF THE PATH OF CIRCULATION OF THE BEARING ROLLING ELEMENTS.