The present invention relates to a bearing device (61) provided with: a plurality of bearing pads (72) arranged between the outer peripheral surface of a turbine rotor (30) and the inner peripheral surface of a bearing housing (71) so as to be separated from each other in the circumferential direction of the rotor (30), the bearing housing (71) externally surrounding the rotor (30), the bearing pads (72) being supported on the inner peripheral surface of the bearing housing (71) and rotatably supporting the rotor (30); and a thermometer (75) provided to at least one of the plurality of bearing pads (72). The thermometer-equipped bearing pad (73) provided with the thermometer (75) has: a pad body (90) disposed facing the outer peripheral surface of the rotor (30); and a pair of pad shoulders (91) having different shapes and protruding from the pad body (90) to both sides of the bearing housing (71) in the direction of the center axis (O1) thereof. The bearing housing (71) has a pair of housing shoulders (78) having a shape corresponding to that of the pair of pad shoulders (91).