Patent ID: 8640671

Claim:
A bearing device comprising: two or more pairs of bearing parts for supporting a shaft of a valve, the pairs of bearing parts being arranged in an axial direction of the shaft; first connecting parts each connecting one bearing part of a pair of the two or more pairs of bearing parts to the other bearing part of the pair of the two or more pairs of bearing parts; and one or more second connecting parts, each oriented so as to connect pairs of the bearing parts that are adjacent to each other, wherein: the first connecting parts are elastically deformable, each of the first connecting parts includes a bent portion in a bent shape to absorb a force that will act in at least one of the axial direction and a radial direction of the shaft, each bent portion is bent in a stair-like shape obtained by bending each first connecting part on a plane, and the bearing parts, the first connecting parts, and the second connecting parts are integral with one another.