Patent ID: 8714832
Filing Date: 2014-05-06
Classification: F16C

Abstract:
1. A conical roller cage comprising: a small-diameter annular portion; a large-diameter annular portion that has a bore diameter larger than a bore diameter of the small-diameter annular portion; a plurality of pillar portions that couple the small-diameter annular portion to the large-diameter annular portion and that are located at intervals from each other in a circumferential direction; a plurality of roller partition walls that each extend radially from a radially facing surface of a corresponding pillar portion of the plurality of pillar portions, a circumferential width of each roller partition wall being smaller than a circumferential width of each pillar portion; a plurality of canopy portions, each canopy portion protruding from a radially facing surface of each roller partition wall opposite from the corresponding pillar portion, each canopy portion extending in both circumferential directions from a center of the canopy portion; and lubricant reservoirs disposed on both radial sides of a radial location, the radial location defining a position at which a circumferential distance between each roller partition wall and a corresponding conical roller of a plurality of conical rollers is at a minimum, the radial location being disposed near a trajectory along which central axes of the conical rollers pass, the reservoirs including: two pillar portion-side lubricant reservoirs and two canopy portion-side lubricant reservoirs are disposed adjacent to each roller partition wall portion; the small-diameter annular portion has a bent portion that extends radially; the roller partition walls and the canopy portions each are connected to the bent portion; and one axial side of each lubricant reservoir is closed by the bent portion.