Rib-mounted bearing seal

In combination with a tapered roller bearing having a cone, a cup, and a plurality of tapered rollers between the cone and cup, the cone and cup having opposed tapered raceways along which the tapered rollers roll, the cone further having a thrust rib against which the large diameter ends of the rollers bear and a back face located at the end of the thrust rib, an improved seal comprising:

• a metal seal case including an axial portion having inner and outer segments joined together at a tight bend located at one end of the axial portion, with the inner segment being fitted tightly over the thrust rib on the cone, an inner radial flange attached to and extended radially inwardly from the inner segment of the axial portion such that it is adjacent to the back face of the cone, and an outer radial flange attached to the outer segment of the axial portion and extended radially outwardly therefrom;
• and an elastomeric seal element bonded to the seal case and including a primary sealing lip which bears against the cup of the bearing.

In combination with a bearing having an inner ring, an outer ring and a plurality of rolling elements between the rings, an improved seal comprising:

• a seal case including an inner axial segment press fitted over the inner race, an outer axial segment joined to the inner segment at one end thereof and closely overlying the inner segment, and a radial flange attached to the inner segment at the opposite end thereof and located opposite the end of the inner ring;
• the flange and end of the outer axial segment being located such that an axially directed installation force applied to the seal will be transmitted through both the inner and outer segments;
• and an elastomeric seal element bonded to the seal case and projecting outwardly therefrom generally toward the outer race.