Idler arm replacement bearing

Claim 1

A REPLACEMENT BEARING ADAPTED TO BE PRESS FIT IN THE EYE OF A MEMBER IN AN ARTICULATED LINKAGE, SAID BEARING HAVING A TUBULAR HOUSING DIMENSIONED TO BE FORCED INTO SAID EYE, AND A SPINDLE IN SAID TUBULAR HOUSING WITH AN END PROJECTING BEYOND SAID TUBULAR HOUSING, THE IMPROVEMENT COMPRISING, A COMBINED RADIAL AND THRUST BEARING UNIT INCLUDING A SLEEVE TYPE BEARING MEMBER SEATED IN SAID TUBULAR HOUSING, SAID SLEEVE HAVING INTERNAL CYLINDRICAL BEARING SURFACES OF VARYING DIAMETER IN AN AXIAL DIRECTION WITH A LARGER DIAMETER AT ONE END AND THE SMALLER DIAMETER AT ITS OTHER END, SAID SPINDLE HAVING CYLINDRICAL EXTERNAL BEARING SURFACES OF VARYING DIAMETER IN AN AXIAL DIRECTION AND BEING CONTOURED TO MATE WITH THE INTERNAL BEARING SURFACES ON SAID SLEEVE TYPE BEARING MEMBER, AN AXIALLY MOVABLE RING RETAINER CONCENTRIC WITH AND THREADEDLY ENGAGING SAID TUBULAR HOUSING APPROXIMATE ONE OPEN END THEREOF, SAID RING RETAINER HAVING A LIP OVERHANGING THE SMALLER DIAMETER END OF SAID SLEEVE TYPE BEARING MEMBER, MEANS FOR LIMITING MOVEMENT OF SAID RING RETAINER IN A DIRECTION AWAY FROM SAID TUBULAR HOUSING, AND A THRUST BEARING UNIT HAVING A PART SECURED ON SAID SPINDLE AND A RELATIVELY ROTATABLE PART SUPPORTED BY THE SIDE OF SAID RING RETAINER OPPOSITE FROM SAID SLEEVE TYPE BEARING MEMBER FOR HOLDING SAID SLEEVE TYPE BEARING MEMBER POSITIONED IN SAID TUBULAR HOUSING AGAINST SAID RING RETAINER.