An elastomeric bearing includes a first race having an axis of rotation, a second race coaxially arranged relative to the first race and spaced from the first race by a gap and a bearing body in the gap connecting the first race to the second race. The bearing body is formed from a first plurality of elastomeric laminae coaxial with the first race and a second plurality of carbon fiber laminae coaxial with the first race, and the elastomeric laminae and the carbon fiber laminae alternate in a direction from the first race to the second race. The carbon fiber laminae may each include multiple sheets of carbon fibers embedded in a thermoplastic such as polyether ether ketone (PEEK).

A ball bearing includes an inner ring; an outer ring placed outside of the inner ring; a plurality of rolling bodies intervening between the inner ring and the outer ring; and an annular cage including pockets rotatably holding the rolling bodies in a circumferential direction at intervals determining a rotation axis to be a center. The cage comprises a resin composition comprising a polyetherketone-based resin, graphite, and a carbon fiber. The resin composition comprises the polyetherketone-based resin in an amount of 60% by weight or more and 80% by weight or less, the graphite in an amount of 10% by weight or more and 30% by weight or less, and the carbon fiber in an amount of 5% by weight or more and 20% by weight or less when the entire resin composition is determined to be 100% by weight.

Disclosed is an axial-radial rolling bearing having an inner ring, an outer ring disposed around the inner ring, and a plurality of rolling bodies in the form of rollers arranged into at least one row disposed between and separating the inner ring and the outer ring. The rolling bearing further includes at least one rolling bearing cage disposed around at least part of the rollers and configured to maintain a predetermined spacing of each of the rollers from each adjacent roller in the at least one row, wherein the rolling bearing cage comprises a plastic coated main body that is at least one of ring-shaped or segmented. The main body has openings for receiving the respective rolling elements.

Two hybrid ball bearings and a compressor bearing arrangement with two hybrid ball bearings for a rotatable support of a rotor of the compressor versus a stator of the compressor. The two hybrid ball bearings are arranged face-to-face or back-to-back, are configured with an optimal axial clearance depending on the inner diameter of a ring-shaped inner raceway element one of the hybrid ball bearings respectively a pitch diameter of one of the two hybrid ball bearings for a long bearing life in connection with an optimal compressor operating performance.

A synthetic resin rolling bearing retainer is to be arranged between an inner ring and an outer ring of a rolling bearing. A plurality of guided portions protruding radially outward from an outer diameter surface of the retainer is provided along a circumferential direction of the outer diameter surface. Each of the guided portions has a guide surface protruding to be in sliding contact with the outer ring, a chamfered portion formed at an edge portion of the guide surface, and a groove portion formed at a portion of the guide surface in an axial direction. The guide surface and the chamfered portion have surface properties where an arithmetic average roughness Ra is 1.0 to 9.8 m and a maximum height Rt is 10.1 to 102.9 m. A parting line is provided radially inside the guide surface.

A tapered roller bearing (31a) has a plurality of retainer segments (11a, 11d) each having a pocket to house a tapered roller (34a), and arranged so as to be continuously lined with each other in a circumferential direction between an outer ring (32a) and an inner ring (33a). The retainer segment (11a, 11d) is formed of a resin containing a filler material to lower a thermal linear expansion coefficient. In addition, a clearance (39a) is provided between the first retainer segment (11a) and the last retainer segment (11d) after the plurality of retainer segments (11a, 11d) have been arranged in the circumferential direction without providing any clearance. Here a circumferential range (R) of the clearance (39a) is larger than 0.075% of a circumference of a circle passing through a center of the retainer segment (11a, 11d) and smaller than 0.12% thereof at room temperature.

A tilting segment (3, 3) for a tilting segment sliding bearing (1, 1) has a segment body (13, 13) for receiving bearing forces. The segment body (13, 13) is made of a fiber-reinforced composite material. The composite material includes a polyether ketone and carbon fibers that function as reinforcement fibers. The carbon fibers make up 25 wt. % to 70 wt. % of the fiber-reinforced composite material. Additionally, the carbon fibers form a fabric. The fabric has a contour that has an orientation that is parallel to a sliding surface (8, 18) of the segment body (13, 13).

A blood flow assist system can include an impeller assembly including an impeller shaft and an impeller on the impeller shaft, a primary flow pathway disposed along an exterior surface of the impeller. The system can include a rotor assembly at a proximal portion of the impeller shaft. A secondary flow pathway can be disposed along a lumen of the impeller shaft. During operation of the blood flow assist system, blood can be pumped proximally along the primary flow pathway and the secondary flow pathway. The system can include a sleeve bearing distal the impeller. The system can include a drive unit having a distal end disposed distal a proximal end of the second impeller. The drive unit comprising a drive magnet and a drive bearing between the drive magnet and the impeller assembly.

A deep groove ball bearing with a split cage includes an outer ring, an inner ring, steel balls, an upper frame body, a bearing frame, and a lower frame body. Pocket grooves are formed in the bearing frame. The bearing frame is provided with a connecting piece. A first insertion groove and a second insertion groove are formed in both side walls of the connecting piece. A connecting groove is formed in a bottom surface of each of the pocket grooves. An oil storage cavity is formed in the upper frame body. The oil storage cavity is provided with a positioning flange at an opening. The positioning flange is in insertion fit with the connecting groove. The lower frame body is provided with arc-shaped grooves at positions corresponding to the pocket grooves. A connecting seat is formed on the lower frame body.

A two-part bearing cage for a rolling bearing includes a first cage part and a second cage part. Each cage part includes an annular base body with a plurality of bars extending axially from the annular base body and/or a plurality of complementarily designed bar receptacles. The bars of one cage part engage in the bar receptacles of the other cage part to form cage bars for defining cage pockets configured to receive the rolling elements of the rolling bearing. Each bar includes a claw and each bar receptacle includes a connection portion such that each connection portion and its corresponding claw form a snap joint.