To provide a shell type roller bearing for a laminated connecting rod capable of preventing occurrence of lateral running by suppressing skewing of a roller and to provide a connecting rod assembly.

This roller bearing 4 constitutes the connecting rod assembly by press-fitting into bearing fitting holes 7, 8 at a large end 2 or a small end 3 in the laminated connecting rod 1. A cage 13 of the shell type roller bearing 4 is constituted in such a way that its cross section is molded into such a shape that an intermediate part in the direction of width is recessed on an inside diameter side more than both end parts by press working, a part between pockets 14 and 14 being adjacent to a plurality of sections in the circumferential direction is a column part 13b, and a part positioned on diameter PCD of a pitch circle of needle-like roller arrangement on an inner face along the longitudinal direction of the pocket 14 becomes a shear plane 14a in the vicinity of a central part in the longitudinal direction of the column part 13b and becomes a fractured face 14b in a root part. A shell type outer ring 11 has a shape of generating line in the direction of width in which a roller 12 on a rolling face rolls having straightness of 0.008 or less and parallelism of 0.015 or less by using an inside diameter face of a reference ring in which the outer ring 11 is press-fitted as reference.