| 主权项 |
1. A prong type cage that is incorporated in a double row roller bearing in which multiple rollers are arranged in two rows between an inner ring and an outer ring, and that holds the rollers arranged in one of the two rows, the prong type cage comprising:
an annular portion; and a plurality of cage bars extended in an axial direction of the prong type cage from one side face of the annular portion, and located at intervals in a circumferential direction of the prong type cage, wherein pockets in which the rollers are held are defined at positions on a side of the one side face of the annular portion and between the cage bars adjacent to each other in the circumferential direction, and a plurality of protrusions each of which is opposed to an inner peripheral face of the outer ring across a clearance and guided by the inner peripheral face of the outer ring, and a plurality of recessed portions that retain grease between the recessed portions and the inner peripheral face of the outer ring are formed on an outer periphery of the annular portion so as to be arranged in the circumferential direction. |
