Composite seal construction for antifriction bearings

Claim 1

AN ANTIFRICTION BEARING COMPRISING AN INNER ANNULAR RACE RING CONCENTRICALLY LOCATED WITHIN AN OUTER ANNULAR RACE RING WHICH DEFINE AN ANNULAR CHAMBER THEREBETWEEN CONTAINING A COMPLEMENT OF ROLLING ELEMENTS, ONE OF SAID RACE RINGS HAVING A PERIPHERAL GROOVE SPACED ON EACH SIDE OF SAID ROLLING ELEMENTS, THE OTHER OF SAID RACE RINGS HAVING A LAND OPPOSITE EACH OF SAID PERIPHERAL GROOVES, AND A SEAL MOUNTED ON EACH SIDE OF SAID ROLLING ELEMENTS COMPRISING A CONTINUOUS METAL WASHING TO THE INNER SIDE OF WHICH IS CONCENTRICALLY BONDED A RADIAL PORTION OF AN ANNULAR SEALING DISC OF RESILIENT ELASTOMERIC MATERIAL, SAID DISC HAVING A STEPPED THICKENED OUTER RADIAL PORTION AT SAID BONDED RADIAL PORTION WHICH TERMINATES INTO A CIRCULAR BEAD SLIGHTLY BEYOND THE PERIPHERY OF THE WASHER, THE RADIAL PORTION OF THE DISC OPPOSITE THE BONDED RADIAL PORTION BEING THINNER THAN THE STEPPED THICKENED PORTION AND EXTENDING RADIALLY INWARD OF SAID BONDED PORTION AND TERMINATING INTO A CIRCULAR LIP, SAID METAL WASHER WITH ITS BONDED ANNULAR DISC BEING FLEXED FLAT SO THAT ITS PERIPHERAL EDGE FITS FIRMLY INTO THE PERIPHERAL GROOVE WITH THE CIRCULAR BEAD OF THE ELASTOMERIC DISC DEFORMED INTO THE BOTTOM OF THE GROOVE SO AS TO CUSHION THE PERIPHERAL EDGE OF SAID WASHER, THE FREELY EXTENDING PORTION OF THE SEALING DISC BEING IN FLEXING ENGAGEMENT WITH THE LAND OF THE OPPOSITE RACE ING.