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US 2003/0198416 A1Published application
Sealed spherical roller bearing for dragline swing shaft
AssigneeThe Timken Company
InventorsRichard Borowski, Jeff S. Calvin, Joseph Vito, Maynard L. Oxley, Hiroshi Marunaka
Life of this patent
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Abstract
A spherical roller bearing having a sealing arrangement and a closure arrangement to prevent the loss of lubricants from the bearing and to prevent the entrance of contaminants into the bearing.
Claims48
A sealed spherical roller bearing for a dragline swing shaft on a dragline excavating machine comprising:
- an outer ring;
- an inner ring having a central bore sized to match a dragline swing shaft;
- a first plurality of spherical rolling elements and a second plurality of spherical rolling elements each of which is interposed between the inner ring and the outer ring;
- an upper seal wear ring;
- a lower seal wear ring;
- an upper closure ring;
- a lower closure ring;
- at least one contact lip seal;
- and
- at least one contact lip seal carrier.
7 more elements
A sealed spherical roller bearing for a dragline swing shaft on a dragline excavating machine comprising:
- a spherical bearing comprising an outer ring, an inner ring having a central bore sized to match a dragline swing shaft, a first plurality of spherical rolling elements and a second plurality of spherical rolling elements each of which is interposed between the inner ring and the outer ring;
- and
- means for preventing the entrance of contamination into the spherical bearing.
Dependencies are inferred from the claim text.