To provide a shell type roller bearing for a laminated connecting rod and a connecting rod assembly, restraining skew of a roller to prevent the occurrence of lateral running.

A cage 13 is formed to have a sectional form such that the middle part in the width direction is recessed toward the inside diameter more than both end parts by press molding, and a pocket 14 is provided in a plurality of parts in the circumferential direction to take a part between the adjacent pockets 14, 14 as a column part 13b. A shear plane 14a part is shaped to be locally projected partially in the longitudinal direction of the pocket not to have a buildup part. In this flat shape, the cage 13 is press-molded in the state of a band steel to have a sectional shape such that the middle part in the width direction is recessed, and then the pocket is punched. A shell-type outer ring is such that on the basis of the inside diameter surface of a reference ring in which this shell type outer ring is pressed, the generating line shape of a range where the roller rolls in the width direction in the rolling surface is set to a straightness of 0.008 or less, and a parallelism of 0.015 or less.