Abstract: A drawn cup roller bearing consisting of an annular outer ring and a plurality of rollers assembled therewith is provided, wherein said annular outer ring has at each of its axially opposite ends, an inside integral flange with an inwardly projecting roller-retaining edge at its free end thereby to form an internal peripheral annular space in the outer ring capable of retaining a number of rollers in side-by-side relation, while at each of the ends of the roller is provided an end projection having a concave sidewall and a generally trapezoidal vertical section viz., so-called dumbbel type roller, which is adapted to be held by said inwardly projecting roller-retaining edges so that a number of rollers are freely and movably held on the internal peripheral annular space formed in the annular outer ring by the opposing inwardly projecting edges without fear of coming off therefrom even in the absence of a shaft to be received in the annular outer ring.

Abstract: A drawn cup roller bearing consisting of an annular outer ring and a plurality of rollers assembled therewith is provided, wherein said annular outer ring has at each of its axially opposite ends, an inside integral flange with an inwardly projecting roller-retaining edge at its free end thereby to form an internal peripheral annular space in the outer ring capable of retain a number of rollers in side-by-side relation, while at each of the ends of the roller is provided an end projection having a concave sidewall and a generally trapezoidal vertical section viz., so-called dumbbel type roller, which is adapted to be held by said inwardly projecting roller-retaining edges so that a number of rollers are freely and movably held on the internal peripheral annular space formed in the annular outer ring by the opposing inwardly projecting edges without fear of coming off therefrom even in the absence of a shaft to be received in the annular outer ring.