Railway car bearing seal
A bearing assembly is provided having a roller bearing with an inner raceway fitted around the journal portion of an axle. An outer raceway combines with the inner raceway to receive roller elements. An improved lubricant seal arrangement is provided between the wear ring and the supporting outer raceway comprising a slinger element.
1 . A roller bearing assembly comprising:
a generally cylindrical cone having a generally cylindrical, outwardly directed raceway thereon,
a generally cylindrical cup having a generally cylindrical, inwardly directed raceway thereon,
the cone having a generally flat, axially inward face,
the cup having a radially inward facing cylindrical counterbore,
a generally cylindrical wear ring adjacent and axially inward from the generally flat, axially inward face of the cone,
the wear ring having a generally cylindrical outer surface,
a seal of generally cylindrical configuration,
the seal having a first end section, an intermediate section and a second end section,
the first end section received in the radially inward facing cylindrical counterbore of the cup,
a resilient sealing element affixed to the second end section of the sealing element, the resilient sealing element contacting the generally cylindrical outer surface of the wear ring,
and a slinger element of a generally cylindrical configuration having a base section affixed to the generally cylindrical outer surface of the wear ring and a radial outer edge adjacent the second end section of the seal.
2 . The roller bearing assembly of claim 1 wherein
the slinger element extends radially about half the length of the second end section of the seal.
3 . The roller bearing assembly of claim 1
wherein the radial outer edge of the slinger element is turned axially outward toward the second end section of the seal.
4 . The roller bearing assembly of claim 1
wherein the slinger element includes a middle section that contacts the second end section of the seal, and the radial outer edge of the slinger element includes a radially outward end extending beyond the intermediate section of the seal.
5 . The roller bearing assembly of claim 4
wherein the slinger element radially outward end extends normal to the base section.
6 . The roller bearing assembly of claim 4
wherein the second end section of the seal extends from the intermediate section of the seal at a radius 90 degree bend, and the slinger element radially outward end extends from the base section at a radius of approximately 90 degrees bend.
7 . A roller bearing assembly comprising:
a generally cylindrical cone having a generally cylindrical, outwardly directed raceway thereon,
a generally cylindrical cup having a generally cylindrical, inwardly directed raceway thereon,
the cone having a generally flat, axially inward face,
the cup having a radially inward facing cylindrical counterbore,
a generally cylindrical wear ring adjacent and axially inward from the generally flat, axially inward face of the cone,
the wear ring having a generally cylindrical outer surface,
a seal of a generally cylindrical configuration,
the seal having a first end section, an intermediate section and a second end section, the first end section received in the inward facing cylindrical counterbore of the cup,
and a slinger element of a generally cylindrical configuration having a base section affixed to the generally cylindrical outer surface of the wear ring, the slinger element extending radially from a position on the wear ring axially inward from the second end section of the seal.
8 . The roller bearing assembly of claim 7 further comprising,
a resilient sealing element affixed to the second end section of the seal, the resilient sealing element contacting the outer surface of the wear ring.
9 . The roller bearing assembly of claim 7
wherein the slinger element extends radially about half the length of the second end section of the seal.
10 . The roller bearing assembly of claim 7
wherein the slinger element includes a radial outer edge that extends axially . outward toward the second end section of the seal.
11 . The roller bearing assembly of claim 7
wherein the slinger element includes a middle section that contacts the second end section of the seal, and the slinger element includes a radial outer edge having a radially outer end extending beyond the intermediate section of the seal.
12 . The roller bearing assembly of claim 11
wherein the slinger element radially outward end extends normal to the base section.
13 . The roller bearing assembly of claim 11
wherein the second end section of the seal extends from the intermediate section of the seal at a radius 90 degree bend, and the slinger element radially outward end extends from the base section at a radius of approximately 90 degrees bend.