FOIL BEARING, FOIL BEARING UNIT, TURBO MACHINE, AND MANUFACTURING METHOD FOR FOIL BEARING

摘要

Provided is a foil bearing 10 provided with a foil holder 11 and a foil 13 attached to the foil holder 11, the foil bearing 10 relatively rotatably bearing a shaft 6. A resin film 15 is formed on a bearing surface S bearing the shaft 6 of the foil 13. The resin film 15 is formed of a matrix resin and contains at least a fluorine resin and graphite. The resin film 15 includes 25 to 70 parts by weight of fluorine resin and 1 to 20 parts by weight of graphite relative to 100 parts by weight of matrix resin. The resin film 15 has a tensile shear strength of 25 MPa or more.