Abstract 1,012,939. Bearings. GOETZEWERKE FRIEDRICH GOETZE A.G. April 6, 1964 [April 5, 1963], No. 14127/64. Heading F2A. A seal, for a roller bearing positioned between a hub 1 and an axle 2, has a resilient cylindrical portion 9 which is received in a radially inner surface of the hub 1; has spaced sealing lips 15, 17 which engage the axle 2; and has a metal reinforcing ring vulcanized therein. The lips 15, 17 and the axle 2 have a grease chamber 18 formed therebetween. The metal ring has a cylindrical portion 10, a radially-inwardly projecting annular flange 19 which is adjacent the bearing and a radially outwardly projecting annular flange 11 at the other end which abuts an end surface 12 of the hub 1. The flange 11 may be covered with resilient material which is integral with the portion 9 and an annular recess 13 may be provided in the end surface 12 of the hub 1 to prevent an inner edge 14 of an extension 8 of the hub 1 from striking the flange 11 during assembly. The lip 15 may be urged towards the axle 2 by a circular spring 16 and the lips 15, 17 may be separate from the sleeve 9. The internal diameter of the flange 19 is smaller than the external diameter of a cage 6 and the axial spacing of the flange 19 from the cage 6 is less than the axial spacing of the lip 15 from an inner race 5 of the bearing so that upon withdrawal of the hub 1, the flange 19 engages the cage 6, and the inner race 5 is prevented from damaging the lip 15.
AN ASSEMBLY COMPRISING; A WHEEL HUB, A SHAFT, A ROLLER BEARING, AND A SEAL FOR SAID ROLLER BEARING, SAID BEARING HAVING AN OUTER RACE AND A GROOVED INNER RACE AND TAPERED ROLLERS BETWEEN SAID RACES SEATED IN THE GROOVE IN SAID INNER RACE AND A ROLLER CAGE INTERMEDIATE SAID RACES RETAINING SAID ROLLERS, SAID OUTER RACE BEING MOUNTED IN SAID WHEEL HUB AND SAID INNER RACE BEING MOUNTED ON SAID SHAFT, SAID SEAL BEING ARRANGED BETWEEN SAID WHEEL HUB AND SAID SHAFT AND AT THAT END OF THE OUTER RACE THROUGH WHICH THE INNER RACE AND ROLLERS AND CAGE ARE WITHDRAWN AS A UNIT FROM SAID OUTER RACE WHEN THE BEARING IS DISASSEMBLED BY WITHDRAWING OF SAID WHEEL HUB TOGETHER WITH SAID OUTER RACE FROM SAID SHAFT, SAID SEAL COMPRISING AN ANNULAR COLLAR OF RESILIENT MATERIAL HAVING IN THE RADIALLY INNER REGION ON THE SHAFT SIDE A PAIR OF AXIALLY SPACED ANNULAR SEALING LIPS SLIDABLY ENGAGING SAID SHAFT AND ADAPTED TO RETAIN A BODY OF LUBRICANT AROUND THE SHAFT AND BETWEEN SAID LIPS, A CYLINDRICAL METAL STIFFENING RING IMBEDDED IN SAID COLLAR IN A RADIALLY OUTER REGION THEREOF HAVING A FIRST RADIALLY OUTWARDLY EXTENDING FLANGE AT ONE END AND A SECOND RADIALLY INWARDLY EXTENDING FLANGE AT THE OTHER END, THE OUTER SURFACE OF SAID COLLAR BEING CYLINDRICAL IN THE REGION OF THE CYLINDRICAL STIFFENING RING, SAID COLLAR BEING PRESS FITTED INTO A CYLINDRICAL BORE IN SAID WHEEL HUB WITH THE SAID OTHER END THEREOF FOREMOST FOLLOWING THE INSERTION INTO THE WHEEL HUB OF THE OUTER RACE OF THE BEARING, THE INNER DIAMETER OF SAID SECOND FLANGE BEING SMALLER THAN THE OUTER DIAMETER OF SAID CAGE, SO THAT UPON WITHDRAWAL OF SAID HUB AND OUTER RACE, THE SAID SECOND FLANGE WILL ENGAGE SAID CAGE AND PREVENT THE INNER RACE FROM BEING DRAWN THROUGH AND THEREBY DAMAGING THE SEAL LIPS.
Claim 2
Dependent Claim
308 words
AN ASSEMBLY COMPRISING; A WHEEL HUB, A SHAFT, A ROLLER BEARING, AND A SEAL FOR SAID ROLLER BEARING, SAID BEARING HAVING AN OUTER RACE AND A GROOVED INNER RACE AND TAPERED ROLLERS BETWEEN SAID RACES SEATED IN THE GROOVE IN SAID INNER RACE AND A ROLLER CAGE INTERMEDIATE SAID RACES RETAINING SAID ROLLERS, SAID OUTER RACE BEING MOUNTED IN SAID WHEEL HUB AND SAID INNER RACE BEING MOUNTED ON SAID SHAFT, SAID SEAL BEING ARRANGED BETWEEN SAID WHEEL HUB AND SAID SHAFT AND AT THAT END OF THE OUTER RACE THROUGH WHICH THE INNER RACE AND ROLLERS AND CAGE ARE WITHDRAWN AS A UNIT FROM SAID OUTER RACE WHEN THE BEARING IS DISASSEMBLED BY WITHDRAWING OF SAID WHEEL HUB TOGETHER WITH SAID OUTER RACE FROM SAID SHAFT, SAID SEAL COMPRISING AN ANNULAR COLLAR OF RESILIENT MATERIAL HAVING IN THE RADIALLY INNER REGION ON THE SHAFT SIDE A PAIR OF AXIALLY SPACED ANNULAR SEALING LIPS SLIDABLY ENGAGING SAID SHAFT AND ADAPTED TO RETAIN A BODY OF LUBRICANT AROUND THE SHAFT AND BETWEEN SAID LIPS, A CYLINDRICAL METAL STIFFENING RING IMBEDDED IN SAID COLLAR IN A RADIALLY OUTER REGION THEREOF HAVING A FIRST RADIALLY OUTWARDLY EXTENDING FLANGE AT ONE END AND A SECOND RADIALLY INWARDLY EXTENDING FLANGE AT THE OTHER END, THE OUTER SURFACE OF SAID COLLAR BEING CYLINDRICAL IN THE REGION OF THE CYLINDRICAL STIFFENING RING, SAID COLLAR BEING PRESS FITTED INTO A CYLINDRICAL BORE IN SAID WHEEL HUB WITH THE SAID OTHER END THEREOF FOREMOST FOLLOWING THE INSERTION INTO THE WHEEL HUB OF THE OUTER RACE OF THE BEARING, THE INNER DIAMETER OF SAID SECOND FLANGE BEING SMALLER THAN THE OUTER DIAMETER OF SAID CAGE, SO THAT UPON WITHDRAWAL OF SAID HUB AND OUTER RACE, THE SAID SECOND FLANGE WILL ENGAGE SAID CAGE AND PREVENT THE INNER RACE FROM BEING DRAWN THROUGH AND THEREBY DAMAGING THE SEAL LIPS.