Sealed needle bearing

Claim 1

A SEALED NEEDLE BEARING COMPRISING A THIN WALLED OUTER RACE DRAWN FROM SHEET METAL AND A SERIES OF NEEDLE ROLLERS THEREIN, THE OUTER RACE HAVING ON ONE END A RADIALLY-INWARDLY DIRECTED RIM BENT OVER THE OUTER EDGE OF THE RACE WITH THE INNER SURFACE OF THE RACE AND THE RIM BEING CONTINUOUS AND SMOOTH-WALLED, AND A SHOULDER FORMED IN THE BORE OF THE OTHER END BY REDUCTION OF THE WALL THICKNESS, AN ELASTIC SEALING DISC CLAMPED AGINST THE RADIALLYINWARDLY DIRECTED RIM BY A METAL DISC ON THE INNER SIDE OF THE ELASTIC SEALING DISC WITH THE SAID METAL DISC BEARING AT ITS PERIPHERY AGAINST THE BORE OF THE RACE UNDER PRELOAD, A SECOND METAL DISC BEARING AGAINST THE SHOULDER IN THE BORE AND AN ELASTIC SEALING DISC CLAMPED AGAINST THE SECOND METAL DISC BY THE FLANGED-OVER END OF THE RACE HAVING A REDUCED WALL THICKNESS.