Patent ID: 7594761
Filing Date: 2009-09-29
Classification: F16C

Abstract:
1. A cylindrical roller bearing cage in combination with a plurality of cylindrical rollers comprising: a pair of annuluses, a plurality of columns interconnecting the annuluses, and a plurality of pockets defined therein receiving the cylindrical rollers between adjacent columns, the pair of annuluses extending orthogonally relative to the columns, wherein each column is provided with a pair of tongues extending radially away from a base of the column, wherein each tongue of the pair of tongues is connected to a relatively planar bottom surface disposed between the pair of tongues by an arcuate surface disposed between each tongue of the pair of tongues and an end of the relatively planar bottom surface, each tongue having a planar end face that is coplanar with an outermost surface of a corresponding annulus of the pair of annuluses, and wherein a relation r/Lw ≧0.1 holds where r is a radius of curvature of corners of the pockets, and Lw is a length of the cylindrical rollers.