Sealed bearing assembly

A sealed bearing assembly comprising:

• a bearing defining a bearing interior space;
• a seal member separating the bearing interior space from an exterior of the bearing, and including a seal lip;
• a seal sliding surface configured to slide relative to the seal lip in a circumferential direction;
• and
• a protrusion on one circumferential portion of the seal lip, the protrusion at least partially defining an oil passage extending between the seal sliding surface and the seal lip, and communicating with the bearing interior space and the exterior of the bearing;
• wherein the protrusion is shaped and positioned such that a fluid lubricating condition can be created between the seal lip and the seal sliding surface, and
• wherein the protrusion extends in a direction perpendicular to the circumferential direction, and has a rounded shape such that a distance between the protrusion and the seal sliding surface decreases from respective ends of the protrusion toward a center of the protrusion, with respect to a circumferential width of the protrusion.