| 摘要 |
PROBLEM TO BE SOLVED: To increase a radial dimension of a separation prevention engagement part throughout the total circumference, and to increase a space between a circumferential surface of a race-side cylindrical part and a cage circumference surface facing it without increasing the diameter of the whole of a bearing. SOLUTION: This thrust roller bearing is structured such that a cage 30A holding a plurality of rollers therein and at least one race 20A are made inseparable; the race includes an annular plate part used as a raceway surface of the rollers, a cylindrical part formed by being axially extended from the outer diameter side or the inner diameter side of the annular plate part to the side on which the raceway is formed, a flange part 24 continuously formed in the radial direction on the side of the annular plate part from the extension end of the cylindrical part, and cutout parts 25 formed at a plurality of circumferential parts in an edge part of the flange part; the cage has projecting pieces 33 formed at a plurality of parts in the circumferential direction on its outer diameter side or inner diameter side corresponding to the respective cutout parts of the flange part of the race; edge parts at both circumferential ends of the respective cutout parts are allowed to be axially engaged with edge parts 35 at both circumferential ends of the pieces. COPYRIGHT: (C)2009,JPO&INPIT
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