Abstract: The damper arrangement is operated in high temperature applications, such as load and speed environments such as found in turboengines. The damper arrangement includes damper pads which are laterally urged against damping elements forming a shearing zone therebetween. The shearing zone is lubricated with solid dry powder lubricant. The damper pads include a circumferential wave or a multi-partial arc configuration formed by radial slots with inwardly tapering radial bevels and lateral bevels adjacent to the radial slots to enhance the circulation of the powder lubricant in response to nutating motion between the damper pad and the damper element.

Abstract: A non-symmetrical circular row of oil inlets are located in a circular manifold surrounding a squeeze film space in a squeeze film damper. The oil inlets are directed radially inwardly from said manifold to open into the squeeze film space. Certain cluster of inlets provide higher oil pressure to the squeeze film space than other inlets. All inlets are equipped with automatically closing synthetic rubber check valves.

Abstract: A squeeze film damper assembly includes a piston ring and groove seal combination. The piston ring is proportioned with respect to its groove to generate a pressure wave in an annular ring space which closely approximates the pressure generate in the annular squeeze film space, thereby improving piston ring sealing. The radial dimension of the ring space is matched to the radial dimension of the squeeze film space. The assembly can include channels interconnecting the squeeze film space and ring space at corresponding angular positions in the annular spaces, with means for restricting circumferential flow between the angular positions.

Abstract: A bearing, especially for the necks on the work rolls of a rolling mill, with at least one bearing outer ring surrounding the neck, which ring has a cylindrical lateral surface in the bore of a chock, where it is supported in the direction of its radial load by way of an oil film, characterized in that the bearing outer ring has at least one recess with two boundary walls opposite each other in the circumferential direction, between which a projection, held in a fixed position with respect to the chock in the circumferential direction, narrowly engages.

Abstract: A squeeze film damper assembly includes a piston ring and groove seal combination. The piston ring is proportioned with respect to its groove to generate a pressure wave in an annular ring space which closely approximates the pressure generate in the annular squeeze film space, thereby improving piston ring sealing. The radial dimension of the ring space is matched to the radial dimension of the squeeze film space. The assembly can include channels interconnecting the squeeze film space and ring space at corresponding angular positions in the annular spaces, with stand-offs for restricting circumferential flow between the angular positions.

Abstract: A squeeze film damper having spaced opposite piston rings for damper fluid sealing includes a fluid plenum groove adjacent and inboard of each ring to serve as a lower pressure receiver for damper fluid and as a reservoir to receive and supply fluid during pumping action of the damper.

Abstract: A sleeve for supporting a rolling bearing comprising a metal core with a high degree of dimensional elasticity to produce a larger radial thickness in the free state, and a cylindrical synthetic resin spacer section laminated with the core, so that the sleeve can follow up the increase of the size of the space in which the sleeve is accommodated.

Abstract: A bearing isolator assembly (70) suitable for use with tapered bearings (20) is provided. The bearing isolator assembly comprises a retaining member (72), a radial wave spring (74) and a separate axial wave spring (76).

Abstract: A support bearing assembly for supporting a jet aircraft engine high speed rotor shaft where an operating temperature of up to 1500 degrees F. is involved and the bearing unit is exposed to such temperature condition, includes a rolling elements-inner and outer race bearing unit capable of operating at such temperature level without adverse effect and, e.g., these components being comprised of ceramic matrix composites. Since such a bearing unit will have different thermal growth than its metallic support housing, the bearing unit is supported in pairs of opposed cylindrical cages, there being an inner cage pair for holding the inner race and an outer cage pair for holding the outer race. The cages have flange means at one end and circularly, spaced support arms extending from the flanges a distance to cage opposite end locations where the support arms are formed as finger structures which interfit with the race members, the spacing between the support arms defining slots in the cage bodies.

Abstract: A bearing isolator assembly (70) suitable for use with straight roller and with ball bearings (20) is provided. The bearing isolator assembly comprises a retaining member (72), a radial wave spring (74), and a nonresilient bump stop member (130), all preferably of a one-piece steel construction.

Abstract: This bearing comprises an external piece (10) with a cylindrical housing (11), a hollow insert sleeve (20) with a circular external wall (21) and a curvilinear triangular internal wall (22), an internal piece (30) with a circular external seating (31) and rolling elements (40) interposed between sleeve and seating.The sleeve is a relatively thin and, for example, press-formed bush, with non-constant thickness, engaged under force in the housing in such a way that the external piece (10) alone exerts a prestress.Application to systems in which it is necessary to obtain a bearing effect without the slightest radial play without it being necessary to effect an adjustment, such as an automobile suspension with trailing arms for example.

Abstract: An assembly and method is provided for properly securing a device such as a bearing, pulley, sheave or the like to a shaft wherein a split tapered adapter is received about the shaft, the adapter having a first end of lesser diameter, a second end of greater diameter, and a tapered surface therebetween, and threads defined about the first end of the adapter, a locknut is in threaded engagement with the first end of the adapter and a device received about the adapter. The locknut has a set of set screws carried therethrough and spaced therearound which are controlled such that the force developed thereby is adequate to clamp the adapter to the shaft and seat the device on the adapter yet is inadequate to move the device toward the second end of the adapter. A second plurality of set screws may be received through said locknut which generate adequate force to move the device up the adapter to achieve a predetermined location of the device.

Abstract: A radial rolling bearing comprising an outer race ring in whose bore a set of cylindrical rolling elements is arranged, the rolling elements being retained from falling out inwards by an elastic retaining element inserted into the bore of the bearing and stop flanges being provided at both front faces of the rolling elements for their axial fixing, characterized in that at least one of the stop flanges is formed by a detached flanged disc which is retained in its position by an elastic retaining element.

Abstract: A fluid damper and mechanical spring for a radial bearing supporting a shaft of an aircraft gas turbine engine fabricated from a full ring having fluid cavities circumferentially space on the outer diameter of the ring operatively connected to the complementary surface of the support housing and having circumferentially spaced arcuate slots overlying the fluid cavities having a free end for providing the mechanical spring function.

Abstract: A fluid damper for attenuating high amplitudes occasioned by shaft unbalance of a main engine shaft of an aircraft turbine type power plant comprising a full ring with circumferentially spaced fluid cavities surrounding the radial bearing and characterized as being simpler and less costly than heretofore used curve beam fluid dampers.

Abstract: A bearing assembly comprises a housing, a bearing and a shaft. Reaction to a radial load includes substantial components to each side of the radial load line and opposing each other. These components laterally stabilize the bearing. These reaction components arise because the assembly has an arcuate less stiff portion in line with the radial load line.

Abstract: The invention comprises a compact support for a bearing associated with a rotating member such as a shaft of a gas turbine engine. The bearing support has one or more circumferential leaf spring elements which provide radially resilient support for the shaft while being axially stiff to reduce axial thrust movement of the shaft. The spring rate of the support is designed to shift engine vibratory resonances so that they occur outside the normal speed range of the engine; and the support may include internal damping to minimize resonant vibratory peaks. Various bearing support embodiments are also disclosed.

Abstract: A self-aligning bearing assembly for use with a frame and a shaft. The assembly comprises bearings such that the shaft can move relative to the frame and a spring and a friction surface for repositionably mounting the bearings relative to the frame. The spring and friction surface for repositionably mounting the bearings can frictionally hold the bearings in a first position relative to the frame and can allow the bearings to move to a second position relative to the frame and be frictionally held in the second position when repositioned thereto without affecting the critical speed of the shaft system.

Abstract: A cylindrical gear unit which includes a gear housing, a gear pinion and a gear wheel, the gear pinion being fixed to a shaft which is rotatably journalled in bearings supported by at least one bearing support. One of the bearing supports comprises a sleeve in which a roller bearing is fixedly mounted, a fixing plate supported by the gear housing, as well as a disc-shaped rib portion which interconnects the sleeve and the fixing plate. The rib portion extends substantially along the entire length of the sleeve and the fixing plate and is substantially parallel to a tangential plane on the contact line between the gear pinion and the gear wheel. In addition, at least one stop face for the sleeve is arranged at a small distance from the outside of the sleeve on at least that side of the sleeve facing away from the gear wheel.

Abstract: A radial load bearing system of a rotary kiln wherein the rotary kiln is supported by a plurality of rollers held on a base and each roller is provided with its own holder means for holding the roller and its own resilient means for supporting the holder means, the holder means and the resilient means being arranged between the roller and the base.

Abstract: An apparatus for the clearance-free mounting of at least one of the rollers in the support column of a calender. The mounting is for producing plastics material films achieved by means of a roller bearing which is divided into three, a central section or ring and two laterally outer sections or rings in a direction transverse to the major axis of the roller journalled to rotate therein. Each bearing ring or section comprises an inner ring portion, at least one row of cylinder rollers, an outer ring portion and a bearing body portion. Pressure applicator means are provided for displacing the central section relative to the two laterally outer sections or rings in a direction towards and away from the roller journalled therein so as to eliminate play within the bearing. To eliminate the play between the bearing body and the calender support column, an additional pressure applicator means is provided which is incorporated in the calender support column.

Abstract: A pin which acts as a spring directly extends through an outer race without use of an outer-race casing and a pin holder and the central portion of the pin supports the outer race. Axial movement of the pin beyond a predetermined range is restricted by snap rings fitted on the both ends of the pin. An oil film is formed between the outer peripheral surface of the outer race and the inner peripheral surface of casings and oil reservoirs are also defined to damp axial movement of the outer race. That is, the pin which acts as a spring directly extends through the outer race of the bearing in parallel with a rotating shaft and the central portion of the pin elastically supports the outer race. The ends of the pin are supported by the casings through the snap rings. A space in which an oil film functioning as an oil film damper is formed is defined by the outer peripheral surface of the outer race and the inner peripheral surface of the casings.

Abstract: A support stand for bearings for rotating shafts in which a supporting plate carries the bearing and rests on a spring. The latter is resilient in the direction of the shaft, and is substantially rigid in a plane perpendicular to the shaft. The supporting plate is parallel to a horizontal plane passing through the shaft. The spring may be in the form of a double spring, and the bearing may be constructed as a single self-aligning roller bearing. When using a single spring in combination with the bearing, a relative movement of the bearing housing exclusively about the shaft axis is obtained. The spring is pre-loaded in the shaft direction, and an auxiliary spring may be supported outside the bearing support stand and pressed in the shaft direction against the stand. A bottom and top spring may be provided and connected by struts. The springs, moreover, may be made of structural iron having a I-profile.

Abstract: In a bearing device of an exhaust gas turbocharger having tandem rolling-contact bearings, the bearing support rings (5,6) have dogs (16) on their mutually facing end surfaces, each of which dogs penetrates into an opposite recess (17) with axial clearance (18) and tangential clearance (19). An even number of rotationally symmetrically located spring rods (7) extend from a bearing flange (8) connected to the bearing housing (2) through the bearing support rings (5,6) and into a support ring (9) connected to the bearing housing (2), a centrally located collar (14) on the spring rods being located alternately, without clearance, in one or the other bearing support ring (5,6).In this bearing device, the effective bending length (L) of the spring rod (7) is relatively large compared to the total width of the bearing (B). By this means, the bending stress in the spring rods (7) can be kept low or the axial installation length (B) of the bearing device can be reduced.

Abstract: The bearing with rolling contact consists of wire elements (2, 4) which serve as raceways for the rolling elements (1), and an inner bearing ring (3) and an outer bearing ring (5). An insert is fitted between at least one wire element (2) and its associated wire bed (6) in the bearing ring in question (3), and this insert is designed as a tubular pressure pad (7).