Cage for tapered roller bearings

A cage for a tapered roller bearing, wherein the bearing comprises an outer ring, an inner ring radially inward of and spaced from the outer ring and a complement of tapered rollers disposed between the inner and the outer rings for rolling thereover with relative rotation of the rings, each tapered roller having a larger roller diameter section and a smaller roller diameter section and the roller tapering from the larger to the smaller diameter;

• the cage for the bearing being a window cage with a plurality of pockets for receiving the rollers;
• the cage having a small side ring of smaller outer diameter;
• the cage having a large side ring of larger outer diameter;
• the cage having a plurality of arms spaced circumferentially around and joining the side rings, and neighboring ones of the arms defining respective pockets each for receiving a tapered roller;
• the arms which define a pocket for one of the rollers having respective surfaces opposite each other that face toward each other and toward the roller in the pocket;
• at the surface of both of the arms in a pocket in the axial region generally adjoining the large side ring of the cage, the facing surfaces in that region being adapted to the profile of the roller in that in every cylindrically shaped sectional plane through the bearing, and therefore through the rollers of the bearing, and the sectional plane being parallel to the axis of the bearing, the facing surfaces being shaped so that the distance apart of the surfaces in the pocket is approximately the length of a chord of the roller in that cylindrical sectional plane in the region of the largest diameter of the roller.

A tapered roller bearing, comprising an outer ring, an inner ring radially inward of and spaced from the outer ring and a complement of tapered rollers disposed between the inner and the outer rings for rolling thereover with relative rotation of the rings, each tapered roller having a larger roller diameter section and a smaller roller diameter section and the roller tapering in diameter from the larger to the smaller diameter;

• a window cage for the bearing with a plurality of pockets for receiving the rollers;
• the cage having a small side ring of smaller outer diameter;
• the cage having a large side ring of larger outer diameter;
• the cage having a plurality of arms spaced circumferentially around and joining the side rings, and neighboring ones of the arms defining respective pockets each for receiving one of the tapered rollers;
• the arms which define a pocket for one of the rollers having respective surfaces opposite each other that face toward each other and toward the roller in the pocket;
• at the surface of both of the arms in a pocket in the axial region generally adjoining the large side ring of the cage, the facing surfaces in that region being adapted to the profile of the roller in that in every cylindrically shaped sectional plane through the bearing, and therefore through the rollers of the bearing, and the sectional plane being parallel to the axis of the bearing, the facing surfaces being shaped so that the distance apart of the surfaces in the pocket is approximately the length of a chord of the roller in that cylindrical sectional plane in the region of the largest diameter of the roller.