Rolling bearing with oil seal
AssigneeSKF Industrial Trading and Development Company, B.V.
InventorsArmin Schlereth, Johan Christian Marinus Bras, Jan Greving
Life of this patent
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Abstract
A rolling bearing comprises an inner race and an outer race which together enclose a bearing space in which rolling elements are accommodated, which bearing space is sealed off by means of seals fixed on the outer race. In order to prevent oil leakage, provision is made for the fastening between each seal and the outer race to be liquid-tight. The outer race can comprise at least one groove in which a seal is accommodated, while an elastic shut-off element can be provided, which shut-off element is accommodated in the groove.
Claims19
A rolling bearing including an inner race and an outer race which together enclose a bearing space in which rolling elements are accommodated, which bearing space is sealed off by means of seals fixed on the outer race, improvement comprising means fastening each seal to the outer race, said means being liquid-tight with respect to oil which is pressurized due to the centrifugal action resulting from rotating movement of the bearing;
- said means comprising a wall portion of the outer race formed as a circular groove, said seal formed as a ring whose outer peripheral edge is situated in said circular groove, and a ring shaped shut off element situated at least between one wall of said groove and an adjacent surface of said seal, said shut off element and said adjacent surface of said seal being clamped in said groove.
Dependencies are inferred from the claim text.