Abstract: A thrust bearing made of synthetic resin assembled into a strut-thrust type suspension for use in four wheel cars, comprising a casing made of synthetic resin and a bearing body made of synthetic resin, the bearing body being fitted rotatably to the casing by snap-fitting a hook portion of a suspended portion with an engaging portion of a protruded portion, the suspended portion being formed integrally with an outer circumferential edge of the casing, the protruded portion being formed integrally with an outer circumferential edge of the bearing body.

Abstract: Axial loads are absorbed in a roller bearing assembly by elastic axial deformation of the bell members of the bearing cage to avoid imposing axial loads on the roller bearings.

Abstract: A dynamoelectric machine or electric motor construction is disclosed in which the motor has a cylindrical shell having a stator core press-fitted therein and positioned axially with respect to the shell at a predetermined position. The stator core has a central bore which rotatably receives a rotor assembly, the latter having a rotor shaft extending outwardly from each end thereof. An end shield is press-fitted into each end of the cylindrical shell to a predetermined axial position thereby to support bearings journaling the rotor shaft, with the rotor shaft extending axially outwardly through one of the end shields for connection to its application. This one end shield has a seal which is maintained in perpendicular relation to the rotor shaft and which slidingly seals the interior of the motor relative to the end shield and to the rotary application and rotor shaft.

Abstract: A brushless motor is disclosed having a plurality of stator coils disposed circumferentially around a rotatable shaft and a rotor magnet supported to a yoke fixed to the rotatable shaft and opposed to the stator coils. A radial bearing, for radially supporting the shaft, is supported at the center of a coil supporting member supporting the plurality of stator coils. The coil supporting member is formed integral with the radial bearing and is fixed to a casing having a thrust bearing at its center for axially supporting the shaft. Thus, the relative positional accuracy between the stator coil, thrust bearing, and radial bearing can be made high resulting in a stable rotating speed.

Abstract: A thrust bearing which is formed by stamping a plate made of a bearing alloy material or a plate having a bearing alloy layer has an annular shape. The thrust bearing is disposed in a circumferential direction and has a plurality of recesses and projections deformed in the direction of the thickness of the bearing. The thrust bearing may have a positioning and retaining portion.

Abstract: A thrust washer assembly for a planetary gear mechanism including a pair of thrust washers on each side of each planet gear of the mechanism, the planet gear being mounted on planet pinion shafts in a carrier by means of uncaged needle bearings, the washers directly adjacent the planet pinions having angularly spaced ports located at a position radially outward from the needle bearings and the washers between the ported washers and the carrier having sector-shaped recesses at diametrically opposite positions whereby the recesses and the ports register to establish a pumping action that circulates lubricating oil through the needle bearings.

Abstract: Thrust bearings are described comprising a substantially planar thrust accepting member having at least one locating portion substantially at a right angle thereto and which is adapted to co-operate with a recess formed in the bearing housing. In a preferred embodiment there are two locating portions and the co-operating recesses in the bearing housing have re-entrant geometry to prevent accidental displacement of the thrust bearing during installation of the shaft.

Abstract: A scroll-type fluid transferring machine of an improved construction, in which the bottom surface of the base plate of the orbiting scroll member and the bearing surface of the thrust bearing are well adapted even under a thrusting force during compression of the operating fluid, such scroll-type fluid transferring machine having a feature such that the surface of the thrust bearing to support the base plate of the orbiting scroll member, or the surface of the base plate of the scroll member supported by the thrust bearing is slanted in the radial direction so as to form the surface thereof in a center-concaved shape, wherein the inner peripheral side is concave with respect to the outer peripheral side at a very small distance in the axial direction, or that an axial projection which is concentric with the thrust bearing and has a narrow width in the radial direction is provided between the opposed surfaces of the thrust bearing and the bearing frame in the vicinity of the center part in the radial direction

Abstract: A thrust/retaining washer for use in an overrunning clutch is formed as an annular having a single split or opening therein. The washer is formed of an acetal resin material and the split allows it to be expanded to fit over the outside of a tubular inner race and snap into a radially extending circumferential groove formed in the outer cylindrical surface of the inner race. The washer thereby prevents rollers and/or spacers from escaping from the raceway between the inner race and outer race. The washer also abuts an inwardly facing surface of an end cap secured to the outer race to provide an axial thrust surface for the clutch. Radially extending lubrication grooves are formed in both radially extending planar surfaces of the washer to provide a path for lubrication to reach the internal elements of the clutch. The grooves are formed in both surfaces to permit the washer to be installed on the inner race without first orienting the washer.

Abstract: The caterpillar chassis of a mining machine or loading machine has rocker arms 7, 9 being swivellably linked on a caterpillar carrier 2 and having rotatably supported thereon running rollers 8. At least one bearing bracket 5 for the swivel axis 6 of the rocker arms 7 is detachably connected with the caterpillar carrier 2 (FIG. 1).

Abstract: A downhole drive shaft and bearing structure having a unitary, generally cylindrical housing with a radial bearing surface affixed to its interior; a drive shaft having a radial bearing surface affixed to its exterior and thrust bearing inserts mounted at the bit end thereof; and a drive shaft cap affixed to the drive shaft and carrying thrust bearing inserts, the thrust bearing inserts of the cap and drive shaft interfacing with oppositely disposed inserts mounted in the housing.

Abstract: An improved split thrust washer assembly for a vehicle transmission speed shaft. The assembly includes a pair of semi-circular washer segments held in a speed shaft circumferential groove by a C-type compression retaining ring. The ring biases each washer segment interior surface into contact with the groove base wall during maximum shaft speeds thereby neutralizing the centrifugal force tending to separate the segments from the groove. The segments have radially extending opposed end faces having a predetermined minimal clearance therebetween thereby insuring that the segments are maintained in contact with the groove. The thrust washer assembly allows a shallower groove to carry the design thrust loads so as to improve shaft fatigue life.

Abstract: A unitary sleeve mounts both thrust and radial bearings, the radial bearing being fabricated of macro-crystalline tungsten carbide powder and cemented tungsten carbide cobalt chips in a recessed area on an elongated extension and the thrust bearing comprising a ring carrying diamond inserts residing in through holes, the ring and inserts being brazed on a hub at the thrust head end of the extension.

Abstract: A structure and method for attaching bearing inserts including a bearing ring having through holes therein into which said inserts are press fitted and an underlying brazing ring, which, when heated, attaches the bearing inserts to the bearing ring and the bearing ring and inserts to an adjoining structural member.

Abstract: Wheel structure for a trash container comprising an enhanced thickness hub portion defined by positioning a metal member within the locus of the wheel wall during molding so as to increase wall thickness by better heat transfer and increase resin buildup in the vicinity of the metal member. The metal member is usefully a fastener for the end of the wheel carrying axle whereby the position of the wheel on the axle is fixed by the fastening metal member being trapped in the increased wall thickness hub.

Abstract: A height adjusting device for machines or machine elements comprises three adjustment members positioned atop one another and together determining two sets of opposing surfaces. These surfaces allow a gyroscopic movement of the uppermost adjustment member, and the height of the height adjusting device can be adjusted stepwise, one of the two opposing surfaces in the first set of surfaces comprising one or more aligned supporting projections. These projections can cooperate selectively and tiltably with one or more recesses in a row of recesses in the second surface of the first set of surfaces. The depth of the recesses in said row of recesses varies stepwise. The surfaces of the second set of surfaces are provided with cooperating secondary projections and secondary recesses. The line on which the secondary projections are positioned forms an angle of substantially 90.degree. with the line on which the supporting projections are positioned.

Abstract: A thrust bearing for an automobile turbocharger and which sustains a thrust load of the rotor shaft of the turbocharger. The thrust bearing has a first groove for holding lubricating oil supplied to the bearing. A first oil passage extends from the groove toward the axis of the rotor shaft. A second oil passage communicates with the first passage and has oil holes formed therein that extend to tapering lands formed on surfaces on which the rotor shaft bears. The second passage is so disposed that oil is spouted on both sides of the bearing. The lower end portion of the bearing is cut out portion to facilitate removal of oil. The cut out portion constitutes a planar portion of a closed loop on a surface of the bearing. A second groove is formed in the thrust bearing to hold oil discharged from the oil holes to some extent.

Abstract: A vehicle such as an agricultural tractor comprises drivable ground wheels, each front wheel steerable about its king pin's axis. A drive shaft assembly in each king pin comprises two parts axially relatively displaceable so that loads supported by the wheel are transmitted not through the drive shaft assembly but through its housing. The housing is supported on a thrust bearing for steering movement. The thrust bearing has a greater diameter than bearings which support the shaft assembly and comprises a disc surrounded, above and below, by two flat rings, one of which is a two-part ring. In one embodiment, bevel gears under the wheel shaft turn the wheel shaft and the king pin is inclined to the underlying surface and largely contained within the wheel's rim. In the other embodiment the king pin is substantially vertical and received between a pair of wheels, an axle for such wheel pair driven by meshed bevel gears, one on the axle and the other above the axle.

Abstract: An assembly is disclosed for automatically balancing thrust on the rotor of a gas turbine engine. An annular chamber axially positioned relative to the rotor is adapted to receive pressurized hydraulic fluid and apply it to the rotor. The force thereby applied to the rotor is regulated by sensing changes in axial rotor thrust and delivering hydraulic fluid to the chamber at a pressure sufficient to balance axial forces acting on the rotor.

Abstract: The hinge-assembly to which the invention relates has a sleeve (3) located about the central section of a hinge-pin (2), and two thrust-rings (7) associated as one with the pin itself and abutting the ends (33) of the sleeve, the rings themselves housing respective seals (10). These seals (10), together with the rings (7) prevent any outflow of lubricant from the interspace between the breasted surfaces of pin (2) and sleeve (3). The assembly-procedure when uniting said hinge-assembly to the track-links involves preparation and prior lubrication of the hinge itself, followed by a pause of sufficient duration in which to check for any leaks, after which--and only after which--the links are fitted up to the pre-assembled hinge.

Abstract: An overhung steam turbine is described which features a seal assembly and a bearing assembly to minimize axial shaft movement. The seal assembly forms a pressure barrier between a relatively low vacuum exhaust region and an exhaust cavity disposed at one end of the rotor shaft to minimize the pressure differential across the ends of the shaft and the resultant thrust force of the rotor shaft against the turbine casing. A bearing assembly is provided which includes a pair of journal bearings and a pair of oppositely disposed thrust bearings. In one embodiment one thrust bearing is connected by an adapter ring which is mounted to a horizontally split bearing casing. In another embodiment, the thrust bearing is carried by one of the journal bearings. The journal bearings are preferrably connected by horizontally split ring bearings to facilitate insertion and removal of the bearings without removing the overhung shaft.

Abstract: For use in a pressure fed or flood lubricated bearing, there is disclosed a shaft load-bearing element (e.g., the thrust plate in a tapered land thrust bearing) preferably comprising three metallic layers including an inner layer adjacent the shaft surface of metal possessing good bearing properties; an outer layer of structural steel to provide rigidity; and an intermediate layer of copper or copper alloy sandwiched between the inner and outer layers to provide good thermal properties. The metallic layers of such a trimetallic bearing element are metallurgically bonded at the interfaces between layers to enhance heat transfer. Advantageously, a shaft load-bearing element according to the invention is substantially free from distortion and damage during handling and avoids elevated temperature problems.

Abstract: A flexible spring bearing comprising a substantially cylindrical configuration with an arcuate portion being disposed circumferentially about the cylindrical configuration. The arcuate portions may be convexly curved outward or concavely curved inward. Although many combinations are possible, the preferred embodiment is a concave portion at one end and a convex portion at the other end. A thrust cap is incorporated to be inserted over the convex portion thereby evenly distributing the applied pressure throughout the flexible spring bearing and also regulating the flexibility of the convex portion. Furthermore, a main bearing race and thrust race are incorporated to be contiguous to the end of the concave portion. The main bearing race along with the cylindrical configuration rotates, via a bearing means, upon the thrust race. The bearing means may be an annular protrusion disposed concentric with the cylindrical configuration.

Abstract: An intermediate thrust bearing is positioned between the rotating cutters and its bearing pin of an earth-boring bit. The intermediate bearing is so configured to take outthrust loads, without rotation, that are directed axially against a radially disposed surface of the roller cone journal as the rock bit works in a borehole.

Abstract: In a compressor for refrigerant fluids, the thrust bearing for a vertical crankshaft comprises, on the one hand, an annular element of a material with a low coefficient of friction, which is rotatable with a main journal above the shaft and has a flat lower radial surface, and comprises, on the other hand, a flat radial surface machined on an upper main bearing fixed in the compressor casing. The lower surface of the annular element bears upon the flat radial surface of the upper main bearing.

Abstract: An axial thrust bearing arrangement for a shaft has a two-piece thrust ring comprised of substantially semiannular portions. Each semiannular portion has one end structure projecting radially inward and engaging a recess in the shaft. An outer ring encircles the semiannular portion to prevent movement radially outward. Each end structure has a relief or undercut area adjacent the annular portion to provide clearance with the shaft surface adjacent the recess.

Abstract: Incorporation of a spacing member in an axle supported bolster pivot assembly provides wear compensation means and allows the utilization of interchangable inboard and outboard thrust bushings and wiper seals.