Tapered roller bearing

In a tapered roller bearing including an inner race and an outer race respectively having a first tapered track and a second tapered track, a plurality of tapered rollers disposed between said inner race and said outer race, and held in circumferentially equally spaced positions by a cage made of a synthetic resin, a shoulder for guiding the tapered rollers, provided only at a large diameter portion of said inner race, and projections for engagement with said shoulder, formed on a large diameter side annular portion of said cage at portions thereof corresponding to its positions between windows for the tapered rollers, the improvement comprising;

• said cage having the projections each formed on the large diameter side annular portion thereof in such a shape as is folded radially and inwardly at its forward end portion, with a width and a thickness of said projection being gradually reduced from its base towards said forward end portion to provide a pointed shape,
• said inner race having the shoulder formed into an inclined surface, with its diameter being increased from an inner side of the bearing towards its outer side, and
• an engaging portion formed in said shoulder for engagement with said projections, whereby the forward ends of said projections are engaged with said engaging portion so as to maintain non-contact with respect to said shoulder during rotation of the bearing.