Tapered roller bearing

A tapered roller bearing comprising:

• an inner ring;
• an outer ring concentrically arranged over an outer circumference of the inner ring;
• a plurality of tapered rollers arranged between the inner ring and the outer ring;
• and a holder including pockets that hold tapered rollers at a constant interval, wherein the inner ring has:
• a raceway surface on the outer circumference on which the tapered rollers roll;
• and a large flange portion and a small flange portion that are on opposite sides in an axial direction across the raceway surface and that come into contact with end surfaces of the tapered rollers, the holder is a segment holder divided into a plurality of segments in a circumference direction, the segments each have:
• an opposing pair of a small-diameter-side arc-shaped portion and a large-diameter-side arc-shaped portion spaced apart at a predetermined interval;
• and a plurality of columnar portions extending between the small-diameter-side arc-shaped portion and the large-diameter-side arc-shaped portion, a space surrounded by two adjacent columnar portions, the small-diameter-side arc-shaped portion, and the large-diameter-side arc-shaped portion is defined as each of the pockets for containing the tapered roller, and wherein the inner ring, the tapered rollers, and the holder are put together to form an inner ring assembly, which is incorporated into the outer ring,
• wherein a guide claw is provided on an outer-diameter side of each of adjacent columnar portions of each of the pockets to allow the tapered rollers to be inserted into the pockets from an inner-diameter side of the segments, the tapered roller bearing has a connecting member to be arranged in a ring shape on a large-diameter-side lateral-surface of each of the segments, and an engaging portion for removably engaging the connecting member is provided on the large-diameter-side lateral-surface of the large-diameter-side arc-shaped portion of each of the segments to connect the segments.