Tapered roller bearing

A tapered roller bearing comprising:

• an inner ring including a small rib that is provided on a first axial side and protrudes radially outward and a large rib that is provided on a second axial side and protrudes radially outward;
• an outer ring arranged on a radially outer side of the inner ring;
• a plurality of tapered rollers arranged between the inner ring and the outer ring;
• and
• an annular cage including a small-diameter annular portion on the first axial side, a large-diameter annular portion on the second axial side, and a plurality of cage bars that couple the small-diameter annular portion and the large-diameter annular portion together, the annular cage being configured to house each of the tapered rollers between the large-diameter annular portion and the small-diameter annular portion and between the cage bars adjacent to each other in a circumferential direction, wherein
• the cage bar has a first facing surface that faces an outer peripheral surface of the tapered roller that is housed,
• the first facing surface includes a large-diameter-side facing surface arranged closer to the large-diameter annular portion, a small-diameter-side facing surface arranged closer to the small-diameter annular portion and arranged farther away from the outer peripheral surface of the tapered roller than the large-diameter-side facing surface, and an intermediate facing surface that connects the large-diameter-side facing surface and the small-diameter-side facing surface together and is inclined gradually away from the outer peripheral surface of the tapered roller with increasing distance from the large-diameter-side facing surface to the small-diameter-side facing surface,
• the small-diameter annular portion has a second facing surface arranged so as to face a roller small end face of the tapered roller, and
• the second facing surface includes an outer facing surface located relatively on the radially outer side, and an inner facing surface located relatively on a radially inner side and arranged farther away from the roller small end face in a direction of a central axis of the tapered roller than the outer facing surface.