Abstract: An apparatus for mounting face-to-face angular contact bearings to ensure eload control. Face-to-face angular contact paired bearings have inner races and outer races. The inner races of the bearings are fitted on an element to be supported such as a shaft. The outer races of the bearings are fitted in a bearing housing with a first gap .DELTA.1 therebetween. Preloading of the bearings is achieved by inserting preload springs between external surfaces of the outer races and respective bearing housing surf aces. A second gap .DELTA.2 may also be provided between the bearing housing and the external surface of one of the outer races to prevent a change in preload due to thermal gradients.

Abstract: A Belleville spring/ball combination is utilized in a rotating anode target bearing assembly in an X-ray tube for thermal and electrical conduction as well as self-centering of the target shaft and noise reduction.

Abstract: A bearing housing assembly for a roller includes a housing; bearings provided in the housing and having first and second bearing components provided in the housing with the components being relatively rotatable, a retaining cup holding the components in the housing, and a resilient biasing device held in the housing so as to transmit force to at least one of the components so as to urge the components relative to the housing. The biasing device is preferably a frusto-conical spring and the bearings are preferably taper roller bearings.

Abstract: In a mounting for disk spindles, an embodiment is provided in which, despite simple construction and simple assembly of the bearing, a high degree of precision is obtained. The angle ball bearings in O-arrangement have outer rings (4) the race (4') of which has, in longitudinal section, a radius the center point (7) of which lies on the axis of rotation (8) of the inner races (2).

Abstract: A preload control apparatus for use in a spindle (12) of a machine tool comprises a bearing (16,17) and a plurality of springs (26a to 26d) for exerting a preload on the bearing (16, 17). Some or all of the springs (26a to 26d) are at least partly made of a shape memory alloy so that the preload on the bearing (16,17) can be adjusted with changes in temperature of the springs (26a to 26d).

Abstract: A vacuum pump includes a rotor and at least one bearing that is supplied with a lubricant and that is situated, during operation, in a negative-pressure environment. In order to extend the useful life of the bearing, it is proposed that the bearing is formed from a ceramic material.

Abstract: A vacuum pump includes a rotor and at least one bearing that is supplied with a lubricant and that is situated, during operation, in a negative-pressure environment. In order to extend the useful life of the bearing, it is proposed that the bearing is formed from a ceramic material.

Abstract: A rolling bearing arrangement for a turbocharger is comprised of a bearing housing relative to which a rolling bearing is supported. The rolling bearing is securely provided with an outer sleeve which is disposed to surround the periphery of the rolling bearing. The rolling bearing is supported through the outer sleeve on the bearing housing. A first annular space is defined between the outer sleeve and the inner periphery of the bearing housing. An oil inlet opening is opened at the inner periphery of the bearing housing so that lubricating oil is supplied through the oil inlet opening to the first annular space. An oil film damper clearance is formed between the outer sleeve and the bearing housing inner periphery and located adjacent the first annular space in the axial direction of the outer sleeve so that the entire flow of lubricating oil supplied to the first annular space passes through the oil film damper clearance.

Abstract: A bearing supporting arrangement is provided for a turbocharger having a turbine shaft provided with turbine and compressor wheels. The bearing supporting arrangement includes first and second cylindrical oil film damper members, each of which is supported in a floating state through an oil film to the inner peripheral surface of a bearing housing thereby constituting an oil film damper. First and second annular ball bearings are coaxially fixedly supported respectively to the first and second oil film damper members. A generally cylindrical thrust receiving member is interposed between the first and second oil film damper members to be contactable with the first and second oil film damper members. The thrust receiving member is fixed at an axially intermediate portion to the bearing housing by a pin fixed to the bearing housing so as to be movable to make contact with the bearing housing. A first clearance (C.sub.

Abstract: A shaft has rolling member bearings, a compression spring acting to urge the bearings toward the shallow groove in one end of the shaft and a ring fitting round said end, with a portion extending into the groove so that the spring force acts on the ring to assist in retaining the ring in the groove. In order to assist the retention of the ring in the groove, the ring may be provided with a chamfered surface on the outside of the ring at its end which is fitted to the groove. The groove may be axially longer than the ring portion extending into the groove so that the ring can move relative to the shaft. This is advantageous when, for example, tightening a steering wheel onto the shaft against the ring.

Abstract: In a supercharger, a pair of oil film dampers are installed by way of oil films on an inner circumferential wall of a bearing housing and respectively install thereon ball bearings for a rotor shaft. A hollow, generally cylindrical thrust member selectively abuts at the opposite axial ends upon the dampers, whereby to hold the oil film dampers, the ball bearings and therefore the rotor shaft in place relative to the bearing housing. The thrust member is fixed to the bearing housing by a pin received in a tangential groove of the thrust member, i.e., a groove elongated in parallel to a tangential line of a circular cross section of the thrust member.

Abstract: The rolling bearing comprises a housing (10), rolling elements (20), at least one ring (30) in two ring parts (31, 32) freely mounted one inside the other and defining raceways (231, 232) on which roll the rolling elements, and an elastically yieldable prestressing device (50). This device is adjustable between two states, namely a first state in which an elastically yieldable member (53) exerts relatively no prestress for permitting the assembly and a second state in which the elastically yieldable member (3) exerts the prestress for normal operation of the bearing. Application in the case where the other ring (40) is a shaft carrying another raceway (240) along which the rolling elements roll.

Abstract: A rotating, conductive, heat transfer device is provided. The device includes an outer race having an axis, an inner race coaxial with the outer race, and a plurality of bearing balls disposed in a radial direction between the inner race and the outer race. The device also includes a plurality of separators disposed alternately in a peripheral direction between the bearing balls. The device has a first track and a second track, supported by the inner race, for supporting the separators. The inner race has a first, fixed, inner ring portion with a first bearing surface, and has a second, separable, inner ring portion with a second bearing surface. The outer race has a third bearing surface, disposed in a radial direction opposite to the first bearing surface. The outer race also has a fourth bearing surface, disposed in a radial direction opposite to the second bearing surface. The first and second and third and fourth bearing surfaces are in contact with a spherical surface of each bearing ball.

Abstract: The rotating components of an exhaust gas driven turbocharger are supported by a pair of axially separated ball bearings having an outer race and an inner race. A spacer between the bearings engages the outer race of both bearings and exerts a preload bias on the outer races of the bearings urging the outer races away from one another. Accordingly the bearings are preloaded so that centrifugal forces generated during high speed operation will not force the ball bearing away from the inner races.

Abstract: A bearing arrangement for the impellers of the compressor and the turbine of an exhaust gas turbocharger that are arranged next to one another on a shaft end of a rotor shaft. The rotor shaft, via two roller bearings, is supported in the compressor housing. In order to achieve a vibration-damped bearing, at least one roller bearing is supported in the compressor housing while either enclosing a gap-shaped damping space as the hydraulic cushion or a radially acting spring body.

Abstract: An arrangement for adjustment of a rolling bearing which is radially and axially movable inside a sleeve. A helical spring is arranged with prestress between the base of the sleeve and a side surface of the outer ring of the rolling bearing. The terminal windings of the spring are radially restrained by form-locking with projections on the base and the side surface.

Abstract: A bearing device for a turbocharger wherein a bearing casing is interposed between a turbine casing and a compressor casing; disposed within a bearing housing of the bearing casing are a ball bearing on the side of the turbine and a ball bearing on the side of the compressor both of which is supported by a one-piece oil film damper which is floating; and a pin is loosely fitted into the oil film damper and the bearing housing so as to prevent the rotation of the oil film damper.

Abstract: An apparatus for intermitting beams of light for use in a gas analyzer in which a rotary shaft of a chopper is supported by first and second ball bearings. An outside ring of the first ball bearing is fixedly mounted on a bearing housing and either an inside ring or an outside ring of the second ball bearing is adapted to be movable in the thrust or axial direction relative to the rotary shaft, whereby the second ball bearing is movably energized in the thrust direction by an elastic member to eliminate shake of the rotary shaft due to play in the ball bearings and thus reduce modulation noise to improve measuring accuracy of the gas analyzer.

Abstract: A rotary assembly includes a shaft, a housing, and a bearing interposed between shaft and housing to provide radial support while also permitting relative rotation.The invention permits optimum operation of the bearing, by permitting the bearing to be self-positioned even though slightly out of alignment with either the shaft or the housing, or both.This is accomplished by providing a radial space between the bearing and the shaft or housing; placing a generally ring-shaped compensating member in circumferential engagement with the associated cylindrical surface of the shaft or housing; providing a longitudinal taper on the outer surface of the associated end of the bearing; and then placing the tapered surface of the bearing in overlapping engagement with the compensating member and resiliently urging the bearing and the compensating member axially together so as to provide a firm support both radially and axially for the bearing.

Abstract: A disk drive motor has a mounting plate with a circuit board on one face and a cylindrical hub extending therethrough. A stator is secured to the plate and exterior of the hub. A cup-shaped rotor overlies the stator and has a rotor shaft journaled in the hub by spaced sealed precision bearings. The bearing opening includes an integral ledge which forms bearing chambers having smooth, uninterrupted walls within which a bearing is secured. Each bearing has an outer race secured within the chamber and an aligned inner race secured to the shaft, with end sealing members to seal the bearings. Spring means are located between each ledge are the inner races of the corresponding bearings to load the bearings. In assembly, the one bearing is assemblied on the shaft and inserted into the hub with the outer race adhesively bonded in place. The opposite bearing is close fitted into the opposite bearing and the shaft is pressed into the bearing during the assembly.

Abstract: A sealed, oil-filled journal is provided which includes two axially-spaced ball race areas in the preferred embodiment, and which incorporates an axially expanding pressure ring disposed between an internal annular rib and the angular contact ballbearing ring in one of the ball race chambers. The pressure ring maintains generally constant force against all of the bearings in the spaced ball race chambers so that the combination of the immersion in oil of all the bearings in the journal, and the maintenance of the constant pressure on the bearing elements to prevent their getting loose, minimizes brinelling and produces a jounral that has a very long life span.

Abstract: A turbocharger having a main housing with a throughbore through which a tubular bearing carrier is coaxially positioned. A shaft extends through the bearing carrier and is rotatably secured to the bearing carrier by a pair of axially spaced bearing assemblies, each having an inner race, an outer race and bearing elements entrapped therebetween. A pair of spacers are coaxially positioned around the shaft in between the bearing assemblies so that an outer axial end of each spacer abuts against the outer race of each bearing assembly. A helical compression spring in a state of compression urges the spacers axially away from each other to equalize the axial compressive load on each bearing assembly and thereby minimize bearing skidding and uneven wear.

Abstract: A bearing and stub shaft assembly for a belt conveyor or the like provides a non-rotatable connection between the stub shaft and the inner race of a bearing supporting one end of a cylindrical roller. An inner surface of a central cup in the inner race and the deformed elliptical outer surface of a hollow end of the stub shaft interfit to give a simple, non-rotational connection. At the same time, a cylindrical coil spring captured within the end of the stub shaft as it is deformed is compressed within the central cup to provide a preload to the bearing.

Abstract: A bearing assembly for a steering column includes an axially spaced pair of stamped, angular contact ball bearings with raceways terminating on the ball circle and at least an outer cylindrical support member engageable with the mast jacket of the steering column. A spring or springs contained in the annular space between the ball circles of the bearings and the housing or between the ball circles and the steering shaft serve to preload the ball bearings as well as to bias them into stop members on the support to maintain the bearings and support as a separately handled unit.

Abstract: This invention is a device to reduce the wobble of a rotating shaft disposed in a cavity of a housing which wobble results from a spurious or undesirable positioning of a bearing assembly in which the shaft rotates. The present device includes a bearing follower which is shaped to have a long side which is in abutment with the side walls of the cavity. Accordingly, the follower cannot be readily placed in a cocked or misaligned position. The follower is spring loaded against the bearing assembly which is subject to being cocked and thereby reduces the capability of that bearing assembly to be misaligned.

Abstract: The rotating components of an exhaust gas driven turbocharger are supported by a pair of axially separated ball bearings having an outer race and an inner race. A spacer between the bearings engages the outer race of both bearings and exerts a preload bias on the outer races of the bearings urging the outer races away from one another. Accordingly the bearings are preloaded so that centrifugal forces generated during high speed operation will not force the ball bearing away from the inner races.