Provided is a comb cage for a self-aligning roller bearing, which is formed in a comb geometry by an annular section (5) and a plurality of columnar pieces (6), and in which pockets (7) for retaining barrel-shaped rollers (3) are formed. A pocket-inner surface (6a) of each columnar piece (6) is a cylindrical surface extending perpendicularly, in the cage radial direction at the deepest portion of the inner-race surface (1a). Formed on the outer-diametrical surface of the tip of each columnar piece (6) is a tapered section (9) that tapers cage-inner-diametrically toward the tip forefront. The tapered section (9) begins at a position along the cage axis where the diameter of the rollers (3) is greatest, or from more toward the columnar-piece tip than this axial position. The width of each columnar piece (6), when viewed externally in the cage radial direction toward the center, is narrowest at the tip forefront of the columnar piece (6).
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