| 摘要 |
A variable flow-rate hydrostatic bearing includes a variable flow-rate adjusting portion that reduces the flow rate of fluid and then introduces the fluid into a pocket. The variable flow-rate adjusting portion is configured such that a fluid supply chamber (32a) is separated from a fluid storage chamber (31a) having a projection (31b) by a leaf spring (33) that faces the projection (31b) with a predetermined clearance left therebetween, and the projection (31b) has an opening (31c) and a flow passage that is in communication with the pocket (2a). In the variable flow-rate hydrostatic bearing, a fixed orifice (33a) that provides communication between the fluid supply chamber (32a) and the fluid storage chamber (31a) is formed in the leaf spring (33) at a portion that does not face the projection (31b).
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