Cage for rolling bearing and rolling bearing having the same

A concave surface is formed in an outer peripheral surface of each of pillar portions of a cage . A plurality of recesses and are formed in outer peripheral surfaces of annular portions and of the cage . There are provided passageways and communicating respectively with the recesses and . An axially-outer end of each of the passageways and is open to an axial inner end face of the annular portion or to the concave surface of the pillar portion