Patent ID: 8870465

Claim:
A thrust bearing for a hydraulic continuously variable transmission including: a first race ring having a first race surface; a second race ring having a second race surface; a plurality of balls that is placed between the first race surface and the second race surface in a rollable manner; and a holder that holds the balls at equal intervals in a circumferential direction, wherein the holder is made of a synthetic resin, a pocket interval is 2 to 5% of a diameter of the balls, the holder includes: a first protruded portion, protruded along the axial direction and disposed between the balls; and a second and third protruded portions, protruded along the axial direction and disposed on diametrically opposite sides of each of the balls along a radius of the holder, and an interval between the first protruded portion and the ball is 2 to 5% of a diameter of the balls.