A bearing assembly of a gas turbine engine includes a bearing inner race, a bearing outer race located radially outboard of the bearing inner race and a plurality of bearing elements located between the bearing inner race and the bearing outer race. A centering spring is operably connected to and supports the bearing outer race. The centering spring is an annular structure including a base portion, a tip portion, and a plurality of beams extending axially between the base portion and the tip portion.

A compressor assembly is provided. Embodiments of the present disclosure generally relate to compressors used in chiller air conditioning systems for indoor spaces. The disclosed compressors have magnetic bearings that support rotating components. In one embodiment, the compressor comprises a partially segmented thrust bearing stator core. Additional systems, devices, and methods are also disclosed.

A pre-tensioned bearing assembly, including: a first rolling bearing including a first outer ring, first inner ring including a first conical surface, and a plurality of rolling elements radially disposed between the first inner and outer rings; a second rolling bearing including a second outer ring, a second inner ring including a second conical surface, and a plurality of rolling elements radially disposed between the second inner and outer rings; a shaft including a shoulder in contact with the second rolling bearing; a first conically-shaped sleeve in contact with the first conical surface and the second conical surface, and including a cylindrical inner surface; a second conically-shaped sleeve in contact with the cylindrical inner surface; and a shaft nut including an internal thread in cooperation with the shaft, and fixing the first inner ring and the second inner ring axially onto the shaft.

A pre-tensioned bearing assembly, including: a first rolling bearing including a first outer ring, first inner ring including a first conical surface, and a plurality of rolling elements radially disposed between the first inner and outer rings; a second rolling bearing including a second outer ring, a second inner ring including a second conical surface, and a plurality of rolling elements radially disposed between the second inner and outer rings; a shaft including a shoulder in contact with the second rolling bearing; a first conically-shaped sleeve in contact with the first conical surface and the second conical surface, and including a cylindrical inner surface; a second conically-shaped sleeve in contact with the cylindrical inner surface; and a shaft nut including an internal thread in cooperation with the shaft, and fixing the first inner ring and the second inner ring axially onto the shaft.

A pulley device for a transmission element having a pulley, a bearing, and at least one sleeve mounted freely in the bore of the inner ring of the bearing. The pulley device includes at least one annular protection shield, the shield retained axially in a first element from the pulley and coming into immediate proximity with the other element, the other element having at least one shoulder projecting radially ensuring that it is axially retained with the shield.

A transmission housing (1) comprising a shaft (2) housed at least partially inside the housing (1) and, mounted on said shaft (2), at least one rotary element (3) and a rolling bearing (4), the rolling bearing (4) comprising an inner ring (5) and an outer ring (6) that are coaxial, separated from each other by rolling members (7). The housing (1) further comprises a blind or through tubular body (8) mounted on the shaft (2) and interposed at least partially between the shaft (2) and the rotary element (3), the rotary element (3) being mounted rotatably secured to the tubular body (8), and the tubular body (8) being kept rotatably secured to the shaft (2) by the inner ring (5), referred to as the constriction ring, of the rolling bearing (4), force-fitted onto said tubular body (8).

A transmission housing (1) comprising a shaft (2) housed at least partially inside the housing (1) and, mounted on said shaft (2), at least one rotary element (3) and a rolling bearing (4), the rolling bearing (4) comprising an inner ring (5) and an outer ring (6) that are coaxial, separated from each other by rolling members (7). The housing (1) further comprises a blind or through tubular body (8) mounted on the shaft (2) and interposed at least partially between the shaft (2) and the rotary element (3), the rotary element (3) being mounted rotatably secured to the tubular body (8), and the tubular body (8) being kept rotatably secured to the shaft (2) by the inner ring (5), referred to as the constriction ring, of the rolling bearing (4), force-fitted onto said tubular body (8).

A bearing system that accepts a journal of a roll includes a housing defining a cavity and having a forward wall that defines an opening into the cavity, the opening configured to accept the journal through the opening and into the cavity. A sleeve is positioned within the cavity of the housing, the sleeve configured to surround the end of the journal. A first seal is positioned within the cavity of the housing adjacent to the forward wall of the housing, the first seal having an engagement surface. A second seal is positioned within the cavity of the housing and operably connected to the sleeve, the second seal having an engagement surface in contact with the engagement surface of the first seal.

Disclosed herein is a rescue bearing, in accordance with some embodiments. Accordingly, the rescue bearing comprises an outer ring, an inner ring, rolling elements, and fastening elements. Further, the inner ring comprises a middle portion and opposing side portions. Further, a first side portion of the opposing side portions extends axially from a first side end of the middle portion beyond a first outer ring edge of the outer ring. Further, a second side portion of the opposing side portions extends axially from a second side end of the middle portion beyond a second outer ring edge of the outer ring. Further, the inner ring is configured for receiving a shaft into a bore of the inner ring based on inserting the shaft into the bore. Further, the opposing side portions is configured to be fastened to the shaft using the fastening elements.

A bearing device is provided which achieves both creep resistance and electrolytic corrosion resistance. At least one of the radially inner surface of the inner ring and the radially outer surface of the outer ring is covered with a coating layer. The coating layer is a coating layer composite composed of a plurality of layers. Of the plurality of layers, the surface layer is composed of an anti-creep film having lubricity, and at least one layer other than the surface layer is composed of an insulating film having insulating properties.