Multiple stage seal for a bearing assembly
AssigneeRoller Bearing Company of America, Inc.
InventorJames Voisine
Life of this patent
Estimating the term…
Abstract
A flexible double lipped annular seal includes an anchor segment at a radially outermost portion thereof and having a pocket formed therein. The annular seal includes a branch segment extending axially outward and radially inward from the first leg at an angle. A first lip seal and a second lip seal extend radially inward from the branch segment and have a gap therebetween. The branch segment terminates in a stub segment. The annular seal includes a metallic shield secured to the annular seal and a portion of which seats in the pocket.
Claims14
A flexible double lipped annular seal for a bearing assembly, the annular seal comprising:
- a first anchor segment comprising an axially extending first base defining a radially outermost portion of the first anchor segment, a first leg extending radially inward from the first base and a second leg extending radially inward from the first base, the first leg and the second leg defining a pocket therebetween;
- a branch segment extending axially outward and radially inward from the first leg at a first angle relative to a first axial surface of the first leg, a first lip seal extending radially inward from the branch segment and a second lip seal extending radially inward from the branch segment, the first lip seal and the second lip seal having a gap therebetween, the branch segment terminating in a stub segment;
- a metallic shield having a radially extending second base and a mid-section extending axially outward and radially inward from the second base at the first angle and a terminus segment extending radially inward from the mid-section;
- and
- the second base of the metallic shield being seated in the pocket, the mid-section being adhered to the branch segment and a portion of the terminus segment being adhered to the stub segment.
A bearing assembly, comprising:
- an inner member having an outer engagement surface extending between a first end and second end of the inner member;
- an outer race having an inner engagement surface, the inner engagement surface being positioned on the outer engagement surface of the inner member and contoured to a shape complementary to the outer engagement surface such that the outer engagement surface is slidably and rotatably engaged with the inner engagement surface;
- at least one first annular groove formed in the inner engagement surface, proximate at least one of the first end and the second end;
- a flexible double lipped annular seal comprising:
- a first anchor segment comprising an axially extending first base defining a radially outermost portion of the first anchor segment, a first leg extending radially inward from the first base and a second leg extending radially inward from the first base, the first leg and the second leg defining a pocket therebetween;
- a branch segment extending axially outward and radially inward from the first leg at a first angle relative to a first axial surface of the first leg, a first lip seal extending radially inward from the branch segment and a second lip seal extending radially inward from the branch segment, the first lip seal and the second lip seal having a gap therebetween, the branch segment terminating in a stub segment;
- a metallic shield having a radially extending second base and a mid-section extending axially outward and radially inward from the second base at the first angle and a terminus segment extending radially inward from the mid-section;
- and
- the second base of the metallic shield being seated in the pocket, the mid-section being adhered to the branch segment and a portion of the terminus segment being adhered to the stub segment.
Dependencies are inferred from the claim text.