Abstract: A ball bearing includes an inner ring (1), an outer ring (2), and a ball (3). The inner ring (1) has an inner ring groove curvature radius Ri. The outer ring (2) has an outer ring groove curvature radius Re. The ball (3) has a ball diameter Dw. The ratio of the outer ring groove curvature radius Re to the ball diameter Dw satisfies: Re/Dw?0.5275; and/or the ratio of inner ring groove curvature radius Ri to the ball diameter Dw satisfies: 0.5175?Ri/Dw?0.55. The ball bearing may be accommodated in a housing, thereby forming a ball bearing assembly.

Abstract: A system for monitoring bearing wear in a circular clarifier drive is provided. The system includes a drive motor comprising at least one gear operatively coupled to at least a bridge platform, skimmer, and header of the circular clarifier drive. The at least one gear is rotatable within a housing of the circular clarifier drive on a plurality of bearings positioned therebetween. The system further includes at least one sensor constructed and arranged to measure a gap between at least one stop block of the housing and the at least one gear and determine if the measured gap is within a predetermined range. Methods of retrofitting a circular clarifier drive including a drive motor operatively coupled to at least one gear disposed within a housing and a plurality of bearings positioned between the at least one gear and the housing are also provided.

Abstract: A slide rail assembly includes a first rail, a second rail, an auxiliary member, a blocking member and an operating member. The auxiliary member is arranged on the second rail. The blocking member is pivotally connected to the second rail. When the second rail is located at an extended position relative to the first rail, a blocking feature on the first rail blocks the blocking member in a first state for preventing the second rail from displacing away from the extended position along a retracting direction. When the operating member moves from a first operating position to a second operating position to drive the blocking member to move to a second state, the blocking feature does not block the blocking member in the second state, and the operating member engages with a predetermined portion of the auxiliary member to retain the operating member at the second operating position.

Abstract: Bearing assemblies, apparatuses, systems, and methods include bearing assemblies with bearing elements that are at least partially contained in the bearing assembly.

Abstract: A bearing assembly includes: a shaft; a housing; a support structure; at least one first seal; at least one electrode connected to the support structure and arranged between the support structure and the shaft such that an oil vapor from the oil bath, which passes through the at least one first seal, must pass through a gap between the at least one electrode and the shaft in order to escape, the bearing assembly being configured for an electrical voltage to be applied between the at least one electrode and the shaft so as to direct oil particles contained in the oil vapor onto the at least one electrode such that the oil particles are separated at the at least one electrode; and a drainage channel configured for enabling oil separated at the at least one electrode to flow through the drainage channel into the oil bath.

Abstract: An embodiment of the present invention provides a pull-out system comprising: at least two slide rails each having a fixed rail, an intermediate rail slidably disposed on the fixed rail, and a moving rail slidably disposed on the intermediate rail; and a synchronization means for synchronizing movements of the respective slide rails with each other.

Abstract: A bearing unit comprising rolling elements, housed in a radially inner mounting seat of a casing. The bearing unit includes a radially outer and stationary coated ring provided with a metal ring and a liner of elastomeric material integral with a radially outer surface of the metal ring, a radially inner ring, which is rotatable with respect to an axis of rotation (X), and a row of rolling elements interposed between the coated ring and the radially inner ring. The elastomeric material of the liner is a vulcanized thermoplastic material. The liner is co-molded onto the radially outer surface of the metal ring and may include a cylindrical body and at least two annular protuberances which fit inside corresponding anchoring grooves formed on the surface of the metal ring.

Abstract: A bearing assembly for a door linkage. The bearing assembly is placed about a shaft which runs through a central opening in an arm, and the arm rotates about the shaft. The bearing assembly comprises a central composition bushing, a boss which is rotationally locked with the arm, and a plate. The central opening is large enough such that all the elements of the bearing assembly can be removed without disassembling the arm. The plate retains the elements of the bearing assembly in place when the arm is in use. The plate may also provide torque transmission between the boss and the arm.

Abstract: Provided are: an environment-friendly synthetic resin cage that uses a 100% biomass raw material and therefore aims for carbon neutrality while having performance as a bearing in a conventional process; and a rolling bearing incorporating said cage. A crown-type cage for holding a plurality of rolling elements incorporated between an inner ring and an outer ring is produced with a polyamide resin composition containing a 100% biomass-derived raw material with a reinforcing material contained therein, wherein the raw material is polyamide 410 and 10-40 wt % of the reinforcing material is contained therein.

Abstract: A loader slot bearing includes a housing and a truncated ball. The housing has an interior area that is defined by an inner bearing surface which has a concave contour defining a circumference. A single slot extends axially partway into the inner bearing surface and has a slot arc section area extending axially inward. The slot arc section area has a first circumferential slot-end, a second circumferential slot-end, and a slot arc length measured between the first circumferential slot-end and the second circumferential slot-end. A ratio of the slot arc length to the circumference of the interior area is about 0.20 to 0.35. The truncated ball has a convex exterior surface. The truncated ball is positioned in the slot and rotated so that the truncated ball is rotatably retained by the inner bearing surface. The truncated ball is angularly misalignable relative to the annular housing.

Abstract: A sliding member includes a substrate containing Fe as a main component and an alloy layer overlaid on the substrate and composed of a Cu-base alloy containing 6 to 12% by mass of Ni and 3 to 9% by mass of Sn. The alloy layer has a body layer and an intermediate layer. The body layer is formed of the Cu-base alloy, while the intermediate layer is composed of an alloy containing Ni, Sn, and Cu which are derived from the Cu-base alloy and Fe derived from the substrate. Taking side close to the substrate as a lower region and the other side as an upper region, a ratio of the total area of hard phases to the observation section of the upper region is 1.2 to 3.0, where the ratio of the total area of the hard phases to the observation section of the lower region is set at 1.

Abstract: A slide rail structure with a buffer seat, which comprises: a first rail having a first slot wall and a first side wall connected to the first slot wall, the first slot wall and the first side wall extend in different directions; a movable rail having a roller set and a side roller assembly mounted on the first rail and capable of slidably moving relative to the first rail; and a buffer seat mounted on the first side wall, the buffer seat has two engaging units, the two engaging units are disposed oppositely, and the engaging unit has an engaging hole and at least one second lock hole, thereby the buffer seat is fixed to the first rail to avoid a travel path of the roller set of the movable rail overlapping with a position of a buffer.

Abstract: Example thrust bearing apparatus includes: a thrust disk extending radially from the shaft, the thrust disk having a first side and a second side opposite the first side; a bearing housing surrounding the thrust disk and the shaft, the bearing housing having a first wall facing the first side of the thrust disk and a second wall facing the second side of the thrust disk; a first thrust pad coupled to the first wall of the bearing housing, the first thrust pad including a first plurality of serrations circumferentially arranged in a first pattern along the first thrust pad; and a second thrust pad coupled to the first side of the thrust disk, the second thrust pad including a second plurality of serrations circumferentially arranged in a second pattern along the second thrust pad.

Abstract: A bearing system is provided that includes a stationary structure, a rotating structure, a magnetic-foil bearing and a cooling jacket. The rotating structure is rotatable about an axis. The magnetic-foil bearing radially supports the rotating structure within the stationary structure. The magnetic-foil bearing includes a magnetic bearing stator, a magnetic bearing rotor and a foil bearing. The foil bearing is disposed radially between the magnetic bearing stator and the magnetic bearing rotor. The cooling jacket circumscribes and radially engages the magnetic bearing stator. A cooling circuit is configured to flow cooling fluid within the cooling jacket to cool the magnetic bearing stator.

Abstract: A rolling-element bearing includes first and second concentric ring assemblies. The first ring assembly has a first rolling ring and a first sealing ring abutting axially at a joint, and the first sealing ring supports a first seal element and a second seal element located axially between the first sealing element and the first rolling ring. The second ring assembly has a second rolling ring and a second sealing ring mounted axially at a joint, and rolling elements support the ring assemblies for relative rotation. The first and second seal elements have lips in contact with the second sealing ring, and the lips delimit a first chamber between the first and second sealing rings. The first lip and the second lip extend obliquely toward each other, and a first purging channel extends from the first chamber to an external surface of the first ring assembly.

Abstract: A ball bearing for the scroll of a scroll compressor, having an outer race, an inner race and a plurality of balls disposed therebetween, characterized in that the balls are held and guided in a ball bearing cage, wherein the ball bearing cage is formed as an externally guided plastic cage with a reinforcing structure made of metal as a hybrid cage.

Abstract: A system includes two mechanisms each including a first support shaft equipped with a toothed wheel and with an element that is eccentric relative to the axis of rotation of the support shaft, and a second support shaft equipped with a toothed wheel and with an element that is eccentric relative to the axis of rotation of the support shaft. The eccentric elements of at least one mechanism are disposed at least partially in a plane of rotation perpendicular to the associated support shafts and, when the system is in operation, positions of the eccentric elements of one mechanism are constantly diametrically opposed to positions of the eccentric elements of the other mechanism.

Abstract: Rotor bearings are provided. The motor bearing can be used in an electric submersible pump motor. The bearing can include a body and one or more anti-rotation pins disposed partially in a groove in an outer surface of the body and configured to be received in a corresponding keyway in an inner diameter of a stator. The anti-rotation pin prevents or inhibits rotation of the bearing relative to the stator.

Abstract: A method for regulating the physical properties of slide bearings during operation. The method controls the bearing modulus (Hersey number) s of a slide bearing and includes the steps of: (a) determining the temperature dependence of the dynamic viscosity of the bearing lubricant; (b) determining the mixed-film lubrication to hydrodynamic lubrication transition temperature of the bearing; (c) determining, on the basis of the temperature dependence of the dynamic viscosity of the lubricant, the temperature dependence of the bearing modulus ?(T) and the value of the bearing modulus ?cr of the mixed-film lubrication to hydrodynamic lubrication transition of the bearing; (d) measuring the operating temperature of the bearing; (e) regulating the value of the operating temperature of the bearing in order to keep the operating value of the bearing modulus ?perf close to ?cr in a range corresponding to the transition between mixed-film lubrication and hydrodynamic lubrication.

Abstract: A bearing device includes a bearing provided with an inner ring and an outer ring that rotate concentrically relative to one another. A vibration sensor measures vibrations of the bearing. The bearing device includes a first determining means (10) for determining values of at least a first statistical parameter and a second statistical parameter (P1, P2, P3, P4, P5, P6), a modelling means (11) for modelling the values of the first and statistical parameters with normal distributions, a second determining means (12) for determining a detection threshold (Sd) from the normal distributions during the training period, a third determining means (13) for determining a score (Sc) during normal operation of the machine (1) from the values of the two statistical parameters and the normal distributions, and a comparing means (14) for determining the failure of the bearing (4) from the detection threshold (Sd) and the score (Sc).