Importance

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Abstract

A variable-throttle hydrostatic bearing includes a diaphragm that faces a protruding portion via a predetermined gap and a discharge port formed in the protruding portion so as to communicate with a hydrostatic pocket, and adjusts a throttle amount based on the size of a gap between the diaphragm and the protruding portion. The variable-throttle hydrostatic bearing further includes a piston that contacts, at its first end, a surface on the opposite side of the diaphragm from a surface that faces the protruding portion, a cylinder that holds the piston such that the piston is slidable and forms a fluid chamber along with the piston, and a coil spring housed in the fluid chamber to press a second end of the piston.

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First Claim