초록 ▼

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. A backing ring is centered to the shaft fillet. An annular wear ring is positioned between the inner

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. A backing ring is centered to the shaft fillet. An annular wear ring is positioned between the inner race and the backing ring. An improved lubricant seal arrangement is provided between the wear ring and the supporting outer raceway.

대표청구항 ▼

What is claimed is: 1. A roller bearing assembly comprising a cone having an outwardly directed raceway thereon, a cup having an inwardly directed raceway thereon, the cone having a generally flat, radially outward face, the cup having an inwardly facing cylindrical counterbore, a wear ring adjacen

What is claimed is: 1. A roller bearing assembly comprising a cone having an outwardly directed raceway thereon, a cup having an inwardly directed raceway thereon, the cone having a generally flat, radially outward face, the cup having an inwardly facing cylindrical counterbore, a wear ring adjacent the cone, the wear ring having a cylindrical outer surface, a seal section having a generally cylindrical configuration, the seal section including a first end section received in the inwardly facing cylindrical counterbore of the cup, the seal section having a second end section, a resilient sealing element affixed to the second end section of the seal section such that the resilient sealing element contacts the cylindrical outer surface of the wear ring, a rotor element of generally cylindrical shape, the rotor element comprising an outer section, a intermediate section and an inner section, the inner section of the rotor element having an outer surface affixed to the cylindrical outer surface of the wear ring, and a stator element of a generally cylindrical shape, the stator element comprising an outer section, an intermediate section and an inner section, the outer section of the stator element having an outer surface affixed to or molded integral to the seal section, the inner section of the stator element extending between the outer section and the inner section of the rotor element. 2. The roller bearing assembly of claim 1 wherein the rotor element intermediate section is generally normal to the outer section and to the inner section to form a channel shaped structure, and wherein the intermediate section of the rotor element has a generally flat outer surface that abuts the generally flat, radially outward face of the cone. 3. The roller bearing assembly of claim 1 wherein the rotor element intermediate section is generally normal to the outer section and to the inner section to form a channel shaped structure, and wherein the inner section of the stator element extends part way into the channel shaped structure of the rotor element. 4. The roller bearing assembly of claim 1 wherein the resilient sealing element includes a first contact rib extending into contact with the cylindrical outer surface of the wear ring, and second and third contact ribs spaced from the first contact rib extending into near contact with the cylindrical outer surface of the wear ring. 5. The roller bearing assembly of claim 1 wherein the intermediate section of the stator extends from the outer section at an outward angle, and the resilient sealing element includes an inner edge extending in close proximity to the intermediate section of the stator. 6. The roller bearing assembly of claim 1 wherein the cylindrical outer surface of the wear ring includes a chamfer, and the intermediate section of the rotor element includes a protrusion that extends into the chamfer in the wear ring. 7. A bearing assembly comprising: a bearing cone including an outwardly directed raceway, a bearing cup including a tapered inward directed raceway located in radially outwardly spaced relation to the bearing cone raceway, and rolling elements located between the inner and outer raceways, the bearing cup having an inwardly facing cylindrical counterbore, a backing ring having an inwardly directed counterbore formed therein defining an axial shoulder, a wear ring having a cylindrical outer surface, a seal case having a first end portion received in interference relation within the cylindrical counterbore in the bearing cup and a second end portion, a resilient seal affixed to the second end portion of the seal ring, the resilient seal contacting the cylindrical surface of the wear ring, a rotor element of a generally cylindrical shape, the rotor element comprising an outer section, a intermediate section and an inner section, and a stator element of a generally cylindrical shape, the stator element comprising an outer section, an intermediate section and an inner section, the outer section of the stator element having an outer surface affixed to or molded integral to the seal section, the inner section of the stator element extending between the outer section and the inner section of the rotor element. 8. The roller bearing assembly of claim 7 wherein the rotor element intermediate section is generally normal to the outer section and to the inner section to form a channel shaped structure, and wherein the intermediate section of the rotor element has a generally flat outer surface that abuts the generally flat, radially outward face to the cone. 9. The roller bearing assembly of claim 7 wherein the rotor element intermediate section is generally normal to the outer section and to the inner section to form a channel shaped structure, and wherein the inner section of the stator element extends part way into the channel shaped structure of the rotor element. 10. The roller bearing assembly of claim 7 wherein the resilient sealing element includes a first contact rib extending into contact with the cylindrical outer surface of the wear ring, and a second and third contact rib spaced from the first contact rib, with the second and third contact rib extending into near contact with the cylindrical outer surface of the wear ring. 11. The roller bearing assembly of claim 7 wherein the intermediate section of the stator extends from the outer section at an acute angle, and the resilient sealing element includes an inner edge extending near parallel to the intermediate section of the stator, with the inner edge of the resilient sealing element in close proximity to the intermediate section of the stator. 12. The roller bearing assembly of claim 7 wherein the cylindrical outer surface of the wear ring includes a chamfer, and the intermediate section of the rotor element includes a protrusion that extends into the chamfer in the wear ring. 13. The roller bearing assembly of claim 7 wherein the space between the inner section of the stator element and the outer section of the rotor element is about (0.076 cm) 0.030 inch and the space between the inner section of the stator element and the inner section of the rotor element is about (0.076 cm) 0.030 inch. 14. The roller bearing assembly of claim 7 wherein the inner section of the stator element extends a minimum of about one half the distance into the channel shaped structure of the rotor element. 15. A roller bearing assembly comprising a cone having an outwardly directed raceway thereon, a cup having an inwardly directed raceway thereon, the cone having a generally flat, radially outward face, the cup having an inwardly facing cylindrical counterbore, a wear ring adjacent the cone, the wear ring having a cylindrical outer surface, a seal section having a generally cylindrical configuration, the seal section including a first end section received in the inwardly facing cylindrical counterbore of the cup, the seal section having a second section, a resilient sealing element affixed to the second section of the seal section such that the resilient sealing element contacts the cylindrical outer surface of the wear ring, a rotor element of generally cylindrical shape, the rotor element comprising an outer section, a intermediate section and an inner section, the inner section of the rotor element having an outer surface affixed to the cylindrical outer surface of the wear ring, and a stator element of a generally cylindrical shape, the stator element extending from the second section of the seal section, the stator element extending between the outer section and the inner section of the rotor element. 16. The roller bearing assembly of claim 15 wherein the rotor element intermediate section is generally normal to the outer section and to the inner section to form a channel shaped structure, and wherein the intermediate section of the rotor element has a generally flat outer surface that abuts the generally flat, radially outward face of the cone. 17. The roller bearing assembly of claim 15 wherein the rotor element intermediate section is generally normal to the outer section and to the inner section to form a channel shaped structure, and wherein the inner section of the stator element extends part way into the channel shaped structure of the rotor element. 18. The roller bearing assembly of claim 15 wherein the resilient sealing element includes a first contact rib extending into contact with the cylindrical outer surface of the wear ring, and second and third contact ribs spaced from the first contact rib extending into near contact with the cylindrical outer surface of the wear ring. 19. The roller bearing assembly of claim 15 wherein the resilient sealing element is fitted onto the protrusion of the seal section. 20. The roller bearing assembly of claim 15 wherein the cylindrical outer surface of the wear ring includes a chamfer, and the rotor element includes a protrusion that extends into the chamfer in the wear ring. 21. The roller bearing assembly of claim 15 wherein the seal section and stator are manufactured as one component. 22. The roller bearing assembly of claim 15 wherein the space between the inner section of the stator element and the outer section of the rotor element is about (0.076 cm) 0.030 inch and the space between the inner section of the stator element and the inner section of the rotor element is about (0.076 cm) 0.030 inch. 23. The roller bearing assembly of claim 15 wherein the inner section of the stator element extends a minimum of about one half the distance into the channel shaped structure of the rotor element.