Patent ID: 7249893

Claim:
A rolling bearing comprising: a main body having a spherically-shaped mounting hole; a tilt mechanism positioned in the spherically-shaped mounting hole and having a self-lubricating sliding member and a spherical part having a through hole, the spherical part being freely slidable within the self-lubricating sliding member; and a rotary mechanism, wherein said tilt mechanism and said rotary mechanism are mutually independent; wherein said rotary mechanism comprises a first rolling bearing and a second rolling bearing, wherein each of the rolling bearing having an inner race and an outer race, wherein the outer races are pushed into the through hole, and wherein the spherically-shaped mounting hole includes a concave portion, the self-lubricating sliding member includes a protruding portion, and the self-lubricating sliding member is secured within the spherically-shaped mounting hole by mating of the concave portion and the protruding portion.