| 摘要 |
A split cage includes a plurality of cage segments (6), each of the cage segments having a pair of rim portions, and a pair of cage bar portions, the cage bar portions and the rim portions defining a pocket that accommodates a tapered roller. Turning of each of the cage segments is guided by the tapered roller, the cage segments being arranged in a circular pattern along the circumferential direction of the split cage, in an annular space between an inner ring and an outer ring. A radial clearance (S4-S5) between a radially inner portion of a pocket-side face, which is a side face of each of the cage bar portions, and the outer peripheral face of the tapered roller is set larger than an amount of change (Delta d) in the pitch circle radius of the cage segment when the cage segment is displaced radially outward due to thermal expansion. |
