A bearing assembly comprising: an outer ring having an outer raceway ; an inner ring having an inner raceway ; a plurality of rolling elements retained between the outer and inner rings on the outer and inner raceways ; and a cage having first and second side rings interconnected by a plurality of bridges to form a plurality of windows , each window receiving a respective rolling element to maintain relative spacing between adjacent rolling elements; wherein at least some of the bridges include either: (a) a projection on a radially inner side such that the plurality of projections together define an inner diameter of the cage , the inner diameter of the cage being smaller than an outer diameter of the inner ring as defined by a flange of the inner ring to create interference and elastic deformation of the cage as the cage is installed over the flange of the inner ring ; or (b) a projection on a radially outer side such that the plurality of projections together define an outer diameter of the cage , the outer diameter of the cage being larger than an inner diameter of the outer ring as defined by a flange of the outer ring to create interference and elastic deformation of the cage as the cage is installed inside the flange of the outer ring; characterised in that the projections have a rounded surface or a curvature or a radius in an axial direction of the bearing cage or are a truncated cone or a truncated pyramid. an outer ring having an outer raceway ; an inner ring having an inner raceway ; a plurality of rolling elements retained between the outer and inner rings on the outer and inner raceways ; and a cage having first and second side rings interconnected by a plurality of bridges to form a plurality of windows , each window receiving a respective rolling element to maintain relative spacing between adjacent rolling elements; wherein at least some of the bridges include either: (a) a projection on a radially inner side such that the plurality of projections together define an inner diameter of the cage , the inner diameter of the cage being smaller than an outer diameter of the inner ring as defined by a flange of the inner ring to create interference and elastic deformation of the cage as the cage is installed over the flange of the inner ring ; or (b) a projection on a radially outer side such that the plurality of projections together define an outer diameter of the cage , the outer diameter of the cage being larger than an inner diameter of the outer ring as defined by a flange of the outer ring to create interference and elastic deformation of the cage as the cage is installed inside the flange of the outer ring; characterised in that the projections have a rounded surface or a curvature or a radius in an axial direction of the bearing cage or are a truncated cone or a truncated pyramid. (a) a projection on a radially inner side such that the plurality of projections together define an inner diameter of the cage , the inner diameter of the cage being smaller than an outer diameter of the inner ring as defined by a flange of the inner ring to create interference and elastic deformation of the cage as the cage is installed over the flange of the inner ring ; or (b) a projection on a radially outer side such that the plurality of projections together define an outer diameter of the cage , the outer diameter of the cage being larger than an inner diameter of the outer ring as defined by a flange of the outer ring to create interference and elastic deformation of the cage as the cage is installed inside the flange of the outer ring; <EOS>