Paint roller cover support includes a cage assembly mounted for rotation and limited axial movement in opposite directions on the shaft portion of a roller frame. The cage assembly includes a plurality of circumferentially spaced axially extending semi-cylindrical sleeve segments that move radially outward and inward relative to the shaft portion during axial movement of the cage assembly in opposite directions. Elastomeric rings surrounding opposite ends of the sleeve segments maintain cam members on the sleeve segments in engagement with cam lifters on respective hub members on the shaft portion. Both the elastomeric rings and elastomeric material attached to radial outer surfaces of the sleeve segments may be pressed into frictional engagement with the inner diameter of a surrounding roller cover during radial outward movement of the sleeve segments for securely retaining the roller cover on the support.