Bearing with flexible sealing means

Claim 1

IN AN OIL-TIGHT BEARING HAVING A FIRST BEARING MEMBER AND A CONCENTRIC SECOND BEARING MEMBER, WITH SAID FIRST BEARING MEMBER BEING FORMED WITH A RADIALLY-EXTENDING ANNULAR GROOVE HAVING A BOTTOM WALL AND FIRST AND SECOND SIDE WALLS, AND SAID SECOND BEARING MEMBER BEING FORMED WITH A SLOPING ANNULAR SURFACE, A BEARING SEAL UNIT DISPOSED BETWEEN SAID BEARING MEMBERS, SAID SEAL UNIT BEING FORMED WITH AN ANNULAR ELASTIC BODY HAVING A RIGID ANNULAR REINFORCEMENT DISPOSED ALONG ONE SIDE OF ITS AXIALLY OUTER PORTION, ALL OF THE RADIALLY OUTER PORTIONS OF SAID BODY AND SAID REINFORCEMENT SUBSTANTIALLY COINCIDING AND EXTENDING INTO SAID GROOVE BUT TERMINATING AT A DISTANCE SHORT OF SAID BOTTOM WALL, WHEREBY AN ANNULAR CLEARANCE BETWEEN SAID BOTTOM WALL AND SAID SEAL UNIT IS ESTABLISHED AND MAINTAINED, THE RADIALLY INNER PORTION OF SAID ELASTIC BODY WHICH IS FREE FROM SAID REINFORCEMENT OVERLYING AND BEARING AGAINST SAID SLOPING SURFACE, SAID REINFORCEMENT BEARING AGAINST ONE OF THE SIDE WALLS OF SAID GROOVE AND SAID BODY RESILIENTLY BEARING AGAINST THE OTHER SIDE WALL OF SAID GROOVE, WHEREBY SAID SEAL UNIT DOES NOT IMPOSE A LOAD IN A RADIAL DIRECTION UPON SAID FIRST BEARING MEMBER.