Roller and cage assembly

A roller and cage assembly comprising:

• a plurality of cylindrical rollers having a predetermined diameter;
• a substantially cylindrical cage, comprising:
• first and second rings defining ends of said cage, said first and second rings having a predetermined first thickness with respect to a radial direction;
• and
• plurality of bars, wherein each of said bars has a predetermined second thickness with respect to said radial direction and wherein each of said bars includes at least one guide portion defining roller guide surfaces formed on both sides of each of said bars in a circumferential direction, said guide portions having a predetermined third thickness with respect to the radial direction;
• wherein said first and second rings and said bars, arranged in a circumferential direction, are integrated into a single structure whereby said first and second rings and adjacent ones of said bars demarcate respective pockets;
• wherein respective outer surfaces of said bars and respective outer peripheral surfaces of said first and second rings are disposed at substantially similar radii;
• wherein said diameter of said rollers is greater than said first thickness;
• wherein said second thickness is less than said third thickness;
• wherein said third thickness is the radial distance from an inner surface of said guide portion to said outer surface in the circumferential direction passing through the pitch diameter of said rollers;
• and
• wherein each of said bars includes a recess in an outer peripheral surface of said cage.