A turbomachine comprising: a shaft rotatable about a rotational axis; a turbine wheel provided at one end of the shaft for rotation about the rotational axis within a turbine housing; the shaft being supported for rotation in a bearing housing by a bearing assembly, the bearing housing having a bore through which the shaft extends, the bearing assembly being disposed in the bore, wherein the turbomachine further comprises a first lubricating fluid slinger arranged to rotate with the shaft and comprising a slinging formation arranged to propel a lubricating fluid away from the shaft as the shaft rotates, the shaft comprising a threaded section and the first lubricating fluid slinger comprising a screw thread that is engageable therewith such that the first lubricating fluid slinger is screwable along the threaded section of the shaft from a first position to a second position; wherein the bearing assembly comprises inner and outer races (40, 41) radially separated by bearing elements and when the first lubricating fluid slinger is in the second position, it acts to compress the inner race of the bearing assembly; wherein the turbomachine comprises a thrust plate arranged to restrain axial movement of the bearing assembly, a radially inner surface of the thrust plate defining a bore through which the shaft passes and the first lubricating fluid slinger being mounted on the shaft such that a section of the first lubricating fluid slinger is received within the bore of the thrust plate and the radially inner surface of the thrust plate that defines the bore forms a close radial fit with the first lubricating fluid slinger. a shaft rotatable about a rotational axis; a turbine wheel provided at one end of the shaft for rotation about the rotational axis within a turbine housing; the shaft being supported for rotation in a bearing housing by a bearing assembly, the bearing housing having a bore through which the shaft extends, the bearing assembly being disposed in the bore, wherein the turbomachine further comprises a first lubricating fluid slinger arranged to rotate with the shaft and comprising a slinging formation arranged to propel a lubricating fluid away from the shaft as the shaft rotates, the shaft comprising a threaded section and the first lubricating fluid slinger comprising a screw thread that is engageable therewith such that the first lubricating fluid slinger is screwable along the threaded section of the shaft from a first position to a second position; wherein the bearing assembly comprises inner and outer races (40, 41) radially separated by bearing elements and when the first lubricating fluid slinger is in the second position, it acts to compress the inner race of the bearing assembly; wherein the turbomachine comprises a thrust plate arranged to restrain axial movement of the bearing assembly, a radially inner surface of the thrust plate defining a bore through which the shaft passes and the first lubricating fluid slinger being mounted on the shaft such that a section of the first lubricating fluid slinger is received within the bore of the thrust plate and the radially inner surface of the thrust plate that defines the bore forms a close radial fit with the first lubricating fluid slinger.