Abstract: An electric submersible pump (ESP) electric motor. The ESP electric motor comprises a drive shaft; a first metal compliance ring located around the drive shaft; a second metal compliance ring located around the drive shaft; a first bearing sleeve located around the drive shaft, located around the first metal compliance ring, and located around the second metal compliance ring, wherein there is an interference fit between the inside of the first bearing sleeve and the first metal compliance ring and between the inside of the first bearing sleeve and the second metal compliance ring; and a second bearing sleeve located around the first bearing sleeve and located inside an inner bore of a stator of the electric motor.

Abstract: A mass damper for a refrigerant pipe is configured to insulate vibration and noise of the refrigerant pipe for the flow of a refrigerant circulating in a vehicle air conditioner system and a mass damper for a vehicle air conditioner system is configured to prevent an external circumferential surface of a casing from cracking due to thermal deformation.

Abstract: A system for monitoring of elastomeric bearings is described. A pattern or shape can be applied to a joint comprising elastomeric material. A camera can be disposed such that it can capture photographs or video of the pattern and how it deforms under torque and other stresses. Actual deformation of the shape/pattern can be compared to an expected deformation to gauge levels of degradation of the elastomeric material or other joint components.

Abstract: A bush for vehicles and a method for assembling the same, may include an elastic body closely attached to an external surface of an internal structure, a bearing configured such that the elastic body is coupled to an internal surface of the bearing, a housing coupled to an external surface of the bearing to come into sliding contact with the bearing and mounted on a target object on which the housing is to be mounted, and seals mounted between both end portions of the bearing and both end portions of the housing to seal a sliding contact surface between the bearing and the housing.

Abstract: A suspension bearing ring suitable for a motor vehicle suspension includes: an outer part, an inner part, and an elastomeric body. In embodiments, the elastomeric body connects the inner part and the outer part, and the inner part includes an inner portion, an outer portion, and at least one connection device. Further, in embodiments, the inner portion extends axially into a space by being coupled to the outer portion via the connection device. In embodiments, the connection device includes a fuse portion that is configured to break when the ring is subjected to a predetermined force, and in which a clearance is provided between the inner portion and the outer portion such that the inner portion can move in relation to the outer portion when the fuse portion is broken.

Abstract: A bump cap includes: a tubular main body part; and three or more protrusions provided at different positions in a circumferential direction of an inner circumference of the main body part. A plurality of protrusions are press-fit protrusions having a radial height higher than a radial height of the other protrusions, and the number of the press-fit protrusions are smaller than the number of the other protrusions, and the bump cap is configured to be mounted on an outer circumference of an outer shell of a shock absorber in state where the press-fit protrusions are pushed against the outer circumference of the outer shell.

Abstract: A tilt lock mechanism for a wheelchair having a tilting seat frame pivotally mounted to a non-tiling base frame. The tilt lock mechanism including a catch release member mounted to the tiling seat frame, the catch release member having a guide surface; and the catch release member having a tilt lock position and a tilt lock release position. A locking tab is mounted to the non-tilting base frame, which is sized and shaped to engage the guide surface when said catch release member is in the tilt lock release position. A plurality of locking slots are formed in the tilting seat frame and the locking tab engages one of the locking slots when the catch release member is in the tilt lock position. As well an actuator is provided for moving the catch release member between the tilt lock position and the tilt lock release position.

Abstract: A low-noise main bearing cap for an internal combustion engine is designed that includes a main bearing cap body, wherein the main bearing cap body is connected to an engine body main bearing seat. The main bearing cap body is provided with a vibration isolator A vibration isolation structure is provided between the main bearing cap body and the vibration isolator The main bearing cap body is connected with the vibration isolator through a connector The vibration isolation structure comprises an S-shaped structure and an oil film gap, and the vibration isolator is provided with an oil inlet passage which is communicated with the oil film gap. The present design solves the control problem of the main bearing vibration source caused by the main bearing load.

Abstract: A wheel suspension having at least one chassis suspension link, a first track rod and a second track rod. A deflecting lever connects the first track rod and the second track rod to one another and the deflecting lever is mounted on the at least one chassis suspension link. To produce a simple structure of the bearing system, the bearing system is in the form of a slide bearing which is accommodated by a bearing section of the at least one chassis suspension link, in which a fastener, that connects the deflecting lever and the at least one chassis suspension link, is fitted.

Abstract: A bar pin bushing assembly for connecting components including a bar pin having at least one end with at least one bore to receive a fastener, the bar pin having a central portion having a diameter that is greater than a width or diameter of the at least one end of the bar pin, a compressible rubber section having a uniform thickness positioned around the central portion of the bar pin, the compressible rubber section further extending around downwardly tapering surfaces adjacent the central portion of the bar pin, a plurality of outer metal shells mold bonded to the compressible rubber section, wherein when the bushing assembly is inserted into a hub, the plurality of outer metal shells are configured to radially compress the compressible rubber section to provide a precompressed bushing assembly. A method of assembling the bar pin bushing assembly is also disclosed.

Abstract: A compressor assembly includes a shaft and a compressor wheel that is supported on the shaft. The compressor assembly also includes an electric motor with a stator and a rotor. The electric motor is configured to rotate the shaft and the compressor wheel. The compressor assembly additionally includes a housing assembly configured to house the stator, the rotor, and at least part of the shaft. The housing assembly includes a first member and a second member. Moreover, the compressor assembly includes a dampener disposed between the first member and the second member of the housing assembly. The dampener is configured to elastically deform to provide dampening of a force transferred between the first member and the second member of the housing assembly.

Abstract: A guard tube assembly for a drive shaft of a power tool has a guard tube with a tube cross section deviating from a circular shape and having an inner contour and a center. An inner support tube inside the guard tube supports the drive shaft. The inner support tube has a bearing sleeve supported by support elements on the inner contour. The inner contour has a first and a second circumferential section. The first circumferential section has a smallest spacing to the center and the second circumferential section has a largest spacing to the center. The elastic support elements have a contact surface contacting the inner contour and spaced at a contact surface spacing to the center. The contact surface spacing is longer than the smallest spacing of the first circumferential section and shorter than or identical to the largest spacing of the second circumferential section.

Abstract: A vibration damper, which enables a spring constant in the axial direction to be increased while reducing a spring constant in the torsional direction and a spring constant in the direction perpendicular to the axial direction, is provided. With dividing surfaces of first rubber parts and dividing surfaces of second rubber parts separated from each other in the direction of the axis, and spaces formed between the dividing surfaces, first outer cylinder parts and second outer cylinder parts are held and fixed by cylindrical members. Using the spaces between the dividing surfaces of the first rubber parts and the dividing surfaces of the second rubber parts, a compression component of the rubber base in the direction of the axis can be maintained while suppressing a shear component of the rubber base in the torsional direction and the compression component of the rubber base in the direction perpendicular to the axis.

Abstract: A sealing mechanism (40) includes: a ring-shaped sealing body (41) which surrounds a rotating shaft (24) when viewed from an axial direction; a sealing-body support part (42) which supports the sealing body (41) so as to be movable in a radial direction of the rotating shaft (24); and an elastic member (44) which is interposed between the sealing body (41) and the sealing-body support part (42).

Abstract: A bail compensating joint may include a threaded push rod, a ratchet in threaded connection with the push rod for rotational motion thereon, and a helical joint including a first bearing and a second bearing mounted on the ratchet for facilitating rotation of the ratchet. The second bearing is supported by an annular composite race member formed by a metal annular inner race member joined with a resiliently deformable annular outer member. In another embodiment of the bail compensating joint, a pair of spherical joints is disposed on opposite sides of the ratchet, the spherical joints supporting the respective first and second bearings.

Abstract: The invention relates to an arrangement for the damped bearing of a rotor shaft (1) of an electric machine. The invention also relates to an electric machine comprising a rotor shaft (1) and at least one such arrangement. The invention further relates to a method for the damped bearing of a rotor shaft (1) of such an electric machine. In order to provide an alternative for the damped bearing of a rotor shaft (1), it is proposed that the arrangement has a bearing unit (2), which can be arranged between the rotor shaft (1) and a housing (3) of the electric machine, and a damping element (4), which can be arranged between the bearing unit (2) and the rotor shaft (1) or between the bearing unit (2) and the housing (3), wherein the damping element (4) comprises a mesh of metal wire (5).

Abstract: A bush (20) includes a base material (45) that is disposed at a vehicle body (12), an inter ring (48) that is integrally disposed at the base material (45), and a surface layer (51) that is disposed inside the inter ring (48). The inter ring (48) is arranged along an opening (47) in such a manner as to surround the opening (47). The surface layer (51) includes an insertion hole (52) and is integrally formed from a self-adhesive elastic material into a thin wall shape. A stabilized rod (14) is inserted into the insertion hole (52).

Abstract: An apparatus comprising a drivelink comprising a housing including a socket, wherein the socket comprises a cross-sectional area, and a bearing cartridge disposed within the socket, wherein a cross-sectional area of the cartridge is less than the cross-sectional area of the socket. An apparatus comprising a drivelink comprising a housing having a socket, and a bearing cartridge positioned within the socket and comprising a first portion and a second portion, wherein the first portion is configured to undergo compression when a load is applied to the drivelink, and wherein the second portion is configured to not be in tension when the load is applied to the drivelink.

Abstract: A bush bearing includes a bearing body having an inner peripheral surface which is brought into contact with a cylindrical outer peripheral surface of a rotating shaft portion so as to be rotatable in a first direction, a groove provided on an outer peripheral surface of the bearing body so as to extend in the first direction, and an elastic ring fitted on said groove and having a pair of projecting portions and a portion, the pair of projecting portions partially projecting radially outward from the outer peripheral surface of said bearing body in second direction, the portion being provided at positions in the first direction between the pair of projecting portions, and not projecting radially outward from the outer peripheral surface of the bearing body.

Abstract: The invention relates to a damper bearing comprising a damper bearing housing, a damping element based on at least one elastomer being fitted into the damper bearing housing, the damping element comprising a basic body which has substantially the form of a hollow cylinder with an axis, an outer circumferential surface, an inner circumferential surface and, in the axial direction, two opposite end faces, and further comprising an insert being form-fitted connected with the damping element by fitting the insert into a recess in the inner circumferential surface, wherein at least one of the end faces of the damping element has a profile in which the thickness at the circumference decreases in the axial direction away from the basic body, and wherein the axial profile height of the end face increases from the inner circumferential surface towards the outer circumferential surface.

Abstract: A center bearing bush unit for a propeller shaft can effectively decrease the amount of large/small displacement that occurs in the propeller shaft during driving of a vehicle. A center bearing bush unit for a propeller shaft includes an inner pipe; an outer pipe disposed on a common axis as the inner pipe at the outside of the inner pipe; a cushion rubber attached between the inner and outer pipes, and having a plurality of voids disposed on the common axis; and a plurality of stoppers attached to the outer circumferential surface of the inner pipe while being spaced apart from the cushion rubber at a predetermined interval.

Abstract: A bush bearing includes a bearing body having an inner peripheral surface which is brought into contact with a cylindrical outer peripheral surface of a rotating shaft portion so as to be rotatable in a first direction, a groove provided on an outer peripheral surface of the bearing body so as to extend in the first direction, and an elastic ring fitted on said groove and having a pair of projecting portions and a portion, the pair of projecting portions partially projecting radially outward from the outer peripheral surface of said bearing body in second direction, the portion being provided at positions in the first direction between the pair of projecting portions, and not projecting radially outward from the outer peripheral surface of the bearing body.

Abstract: The invention relates to a rubber metal bearing for a wheel suspension of a motor vehicle comprising an elastic rubber body (10) arranged between an outer bushing (8) and an inner bushing (9) aligned coaxially therewith and fastened thereto. The outer bushing (8) has a front frontal surface (11) to which at least one front elastic rubber damping element (13) is attached, and a rear frontal surface (12) to which at least one rear elastic rubber damping element (13) is attached, wherein the front and rear rubber damping elements (13) are arranged asymmetrically to one another.

Abstract: A hinging arrangement for a wheel axle suspension of a vehicle, comprises an attachment eye fixed to a component to be hingedly attached to the vehicle, and a hinge pin, e.g. a hinge bolt, attached to a fixed vehicle component. The hinge pin is extending through the attachment eye, wherein the attachment eye has a bore for the hinge pin which comprises at least one tapering bore portion. The arrangement further comprises at least one resilient ring and a clamping member each provided with a central bore for the hinge pin, wherein, in the mounted state, the resilient ring is received at least partially within said tapering bore portion. The resilient ring is bearing with one side against the tapering surface of said tapering bore portion and said clamping member is forced against the other side of the resilient ring whereby the resilient ring is compressed between the clamping member and the tapering surface of the tapering bore portion.

Abstract: A bearing mechanism 1 includes a housing 3 having a cylindrical inner peripheral surface 2, a rack shaft 5 inserted and secured in the housing 3 and having a cylindrical outer peripheral surface 4, and a sliding bearing 6 interposed between the inner peripheral surface 2 of the housing 3 and the outer peripheral surface 4 of the rack shaft 5.

Abstract: A bushing, having a core member, at least one enveloping body surrounding the same, and at least one elastic connecting layer, the elastic connecting layer joining together and spacing apart the enveloping body and the core member, and the core member and the enveloping body being movable relative to one another. In view of the object of designing and further refining a bushing of the type mentioned at the outset in such a way that it exhibits an adjustable stiffness response that is dependent on the deflection of the core member relative to the enveloping body, following the cost-effective manufacturing thereof, the bushing has at least one limit stop, which is structurally separate or is produced separately from the connecting layer, is assigned to the core member and/or the enveloping body and limits the relative movement thereof.

Abstract: A vibration-damping plain bearing composite comprising a sliding layer (10, 15) comprising a sliding material, a dimensionally stable support layer (12) and an elastic layer (14), obtained by: providing the sliding layer, the dimensionally stable support layer and the elastomer layer each in the form of sheet-like material, in particular strip-shaped continuous material, joining the sliding layer over its area to the dimensionally stable support layer and joining the elastic layer over its area to the dimensionally stable support layer on the side of the dimensionally stable support layer which faces away from the sliding layer or providing the sliding layer, the dimensionally stable support layer and the elastomer layer each in the form of sheet-like material, in particular strip-shaped continuous material, joining the sliding layer over its area to the elastomer layer and joining the elastomer layer over its area to the dimensionally stable support layer on the side of the elastomer layer which faces away f

Abstract: The invention relates to an elastomer metal element for an elastomer metal bearing, particularly as a bearing connection between a dome module and a vehicle, with an inner cylindrical metal part (2) for connection to a first structural element which is to be supported, with two outer sheet metal shell parts (4, 5; 4?, 5?) lying opposite each other and partly overlapping the inner cylindrical metal part, and with elastomer bodies (6, 7, 8, 9) adhering between the inner metal part (2) and the sheet metal shell parts (4, 5; 4?, 5?), wherein the elastomer metal element (1), with the application of a radial tensioning in the elastomer bodies (6, 7, 8, 9), can be pressed into an accommodating eye (19) at a second structural element which is to be supported.

Abstract: A steering mechanism includes a relay rod and an idler arm operatively attached to a first end thereof. A pitman arm includes a stud and is operatively attached to a second end of the relay rod. A bushing is configured to allow displacement of the pitman arm relative to the relay rod. The bushing includes an outer can, an inner metal member, and a bushing disposed therebetween. The inner metal member has a tapered receptacle configured to mate with a tapered portion of the stud. The resilient member may include voids, which may be oriented generally perpendicular to a turning direction and may be tapered from the base to the opening. The inner metal member may have a generally-cylindrical portion and substantially-opposing outer flats interrupting the same. The outer flats are spaced by a distance smaller than the cylinder diameter and may be substantially parallel to the turning direction.

Abstract: A bush bearing includes a synthetic resin-made bush having a circumferential groove on its outer peripheral surface; an endless annular elastic member fitted in the circumferential groove of the bush; and a positioning structure for determining the position of the bush in a B direction with respect to an inner peripheral surface of a gear housing.

Abstract: A telescoping steering column assembly has an inner jacket and an outer jacket telescopically engaged with a sleeve between the inner and outer jackets. The sleeve has internal and external ribs which run parallel to a longitudinal axis of the sleeve, the internal ribs contacting an outer surface of the inner jacket, and the external ribs contacting an inner surface of the outer jacket. The internal and external ribs are circumferentially offset to allow the wall of the sleeve to flex relative to the opposing surfaces of the jackets, resulting in smooth telescoping action of the assembly without lash. In addition, the system provides a constant collapsing force and provides guidance for a controlled collapse of either a telescoping or non-telescoping column assembly in a vehicle crash impact.

Abstract: To prevent damage to an electric machine (1), for example in a motor vehicle, due to axial loading of the rotor bearing in a simple manner, a cushioning element (11, 18, 22, 27) is proposed to absorb axial loading of the bearing system (6, 7), thereby also reducing the axial play (8) of the bearing system (6, 7). When the bearing system (6, 7) is axially loaded, the cushioning element (11, 18, 22, 27) serves to convert kinetic energy into deformation energy.

Abstract: A mounting means is provided for mounting a device comprising at least one mounting shield, a pivot bearing arranged in the mounting shield and a rotor mounted perpendicularly in the pivot bearing, an axis of rotation of the rotor being oriented substantially perpendicularly when the device is mounted on the mounting means, and the mounting means having resilient properties. In one embodiment, the resilient properties of the mounting means are direction-dependent, in particular orthotropic. As a consequence of the direction-dependent resilient properties of the mounting means, oscillations excited by a rotary movement of the rotor strike a mounting, the pivot point of which does not coincide with the axis of rotation of the rotor, but is set apart therefrom. This makes it much more difficult to excite the mounting means to form unstable oscillations, so that such oscillations are effectively damped.

Abstract: A radially movable bearing for a shaft of a gear in a steering system includes a bush or outer ring that is supported in a receiving element of a mount or housing for the gear. In order to create a radially flexible bearing for the shaft of the gear, which movable bearing enables quiet operation for the entire service life of the gear, the outer ring or the bush is held by at least one support element that is inserted in a gap between the receiving element and the outer ring, and that is made of a material with elastomer behavior.

Abstract: A support device for a bearing assembly includes a housing with a bore and a centerline and a bearing having a bore for receiving a rotatable shaft. The support device has an annular body disposable within the housing bore and having a central axis and inner and outer surfaces extending circumferentially about the axis, the inner surface defining a central bore for receiving the bearing. One or more first integral spring portions extend generally between the inner and outer surfaces and have a first stiffness and one or more second integral spring portions are each spaced circumferentially from the first spring(s). The second spring extends generally between the inner and outer surfaces and has a second, greater stiffness. The body is adjustably angularly positionable about the body axis to adjust a position of the shaft axis with respect to the housing centerline when disposed within the support bore.

Abstract: The elastomeric bush bearing is constructed of a metallic inner part (1) which is symmetric in relation to a bearing axis (a), an outer sleeve (3) arranged concentric with respect to the inner part (1), an elastomeric bearing body (2) arranged between the inner part (1) and the outer sleeve (3) and connected with the inner part (1) by vulcanization. At least one intermediate sheet (4) is vulcanized into the bearing body (2) which forms a support spring. The inner part (1) and the at least one intermediate sheet (4) are bulgedly expanded in a center axial region (5, 5?).

Abstract: A radially movable bearing for a shaft of a gear in a steering system includes a bush or outer ring that is supported in a receiving element of a mount or housing for the gear. In order to create a radially flexible bearing for the shaft of the gear, which movable bearing enables quiet operation for the entire service life of the gear, the outer ring or the bush is held by at least one support element that is inserted in a gap between the receiving element and the outer ring, and that is made of a material with elastomer behavior.

Abstract: A coupling for resilient interconnection of two objects, especially a wheel axle housing and a chassis of a vehicle. The coupling comprises an elongated supporting piece (50), which extends in a longitudinal direction and two end attachment portions (52, 54) and a central portion (56). The coupling also comprises an elastic element (60), which is arranged around the central portion (56) and has an approximately cylindrical outer surface (64) and two end surfaces (68, 70). The coupling further comprises a first and a second abutment member (82, 84), where the first abutment member (82) has a bottom (90) and a tubular portion (86), which is fixed to the bottom (90) and has an open portion and a cylindrical inner surface (98). The bottom has a trough-going hole (106) through which one end attachment portion (52) can extend. The second abutment member (84) has a hole (108) through which the second end attachment portion (54) can extend.

Abstract: An elastomer bush bearing, wherein the bearing body (2) is encapsulated through axial flanges (4, 4?) of the outer bearing sleeve (3), with the bush bearing having an elastomer bearing body (2) with a special profile in the axial direction. The bearing body (2) is employed in constructing the bush bearing of the invention, which is capable of supporting high radial loads even with low radial stiffness and without adversely affecting its stability and service life. The two axial end faces (5, 5?) of the bearing body (1) each have undulated contours which extend in the circumferential direction (u) in the same direction, both with respect to one another and also over the entire region of the material thickness (d) of the bearing body (2).

Abstract: A sliding bearing for a steering column includes: a cylindrical bearing body; flat surfaces formed integrally on an inner peripheral surface of the bearing body; first slits extending from one end face of the bearing body to this side of the other end face of the bearing body; second slits extending from this side of the other end face of the bearing body to the one end face of the bearing body; grooves formed in an outer peripheral surface of the bearing body; and elastic rings which are respectively fitted in the grooves in such a manner as to project from the outer peripheral surface of the bearing body and to reduce the diameter of the bearing body.

Abstract: A coupling device for elastic interconnection of, e.g., arms (66) which are linked to a frame (60) of the vehicle. The coupling device (92) substantially comprises two annular, conical portions (112, 114) of a rubber elastic material and an axle (94). A radially internal side of these annular material portions (112, 114) abuts against contact portions (98, 100) at the ends of the axle (94). The coupling device (92) further comprises two axially opposite rings (124, 126) which are arranged to abut against respective external sides of the annular material portions (112, 114). The axle (94) and the rings (124, 126) have attachment areas (96, 121 and 123 respectively), via which they can be attached to the wheel axle housing (82) and the frame (60) respectively. The attachment area (96) for the axle (94) is located between the first contact portions (98, 100).

Abstract: A flange bearing comprises a housing having a body with a reinforcing member encased therein. The housing provides strength and resistance to stress fracturing without the use of heavy materials, such as cast iron, or the use of ribs and recesses which can harbor contaminates. The bearing is preferably lightweight and easily cleaned. Also, a leveler constructed in accordance with the present invention provides similar advantages.

Abstract: A bearing structure includes a pivot shaft and an elastomer for connecting to a pivot device formed from a first and a second connection member. The pivot shaft includes a connecting portion pivotally connected to the first connection member, an eccentric middle portion, and a bearing portion fixedly connected to the second connection member. The elastomer is mounted on the first connection member to contact with the eccentric middle portion of the pivot shaft, such that a tightness of contact between the elastomer and the eccentric middle portion is adjustable via an adjusting screw to locate the first and second connection members in place after they have been turned relative to each other. An elastic element is held between the pivot shaft and the first connection member to adjust a torsional force of the pivot device when the second connection member is turned relative to the first connection member.

Abstract: A bearing system for a rotor shaft is provided in which a bearing prepared from a high performance polymer is surrounded by an elastomer sleeve that dampens the effect of noise and vibration caused by movement of the rotor shaft against the bearing.

Abstract: A rubber bearing with an approximately cylindrical reinforcing element made of one or more insert parts, with each part extending in the axial direction of the bearing. The one or more insert parts are vulcanized into an elastomer of a bearing body between an inner and outer surface of the bearing body. The one or more insert parts having adjacent edges extending axially parallel with a non-straight, mutually complementary edge profile. An intermediate space formed between the adjacent edges of the one or more parts is filled with the elastomer of the bearing body.

Abstract: A rubber bearing, preferably a simple rubber bearing, is provided with an essentially cylindrical inner part (1), a tubular outer sleeve (2) coaxially surrounding the inner part (1), as well as a pressure body, which is an elastomer (3). The elastomer (3) is arranged between the inner part (1) and the outer sleeve (2) and is connected to same by vulcanization. Two free grooves (4, 4′) extend, beginning from the axial ends of the bearing, into the interior of the bearing in the axial direction over a complete circle around the bearing axis (5). The axial distance of the free grooves (4, 4′) from the bearing axis (5) and/or whose width continuously changes cyclically, wherein there is a phase shift between the two free grooves (4, 4′) in terms of their course, which is determined by the change in the radial distance from the bearing axis (5) and/or the width and which course preferably follows the same cycle.

Abstract: In a bearing assembly for a steering column assembly for example, the bearing assembly comprising an axially split bearing and elastomeric crown, the crown acting to close the split, there is disclosed an improved elastomeric crown. The crown includes a plurality of passageway extending through the crown. The crown also includes a plurality of ribs extending outwardly of the crown. The improved elastomeric crown allows more constant pressure fields and low torque variations of a shaft running in the bearing.

Abstract: A rotary positioning device useful for positioning optical devices such as polarizing prisms, or any similar optical device through which light is transmitted and which requires precise rotation thereof. The device is particularly designed to rotate through a limited arc at an extremely fine degree of resolution. The device utilizes cylindrical bearings formed from materials having a spring constant effective to insure lateral stability without experiencing irreversible deformation. In a preferred embodiment, a Beryllium-Copper alloy is utilized for forming the cylindrical bearings.

Abstract: A guide bush for an adjustable length column for chairs, tables or the like is provided, in its inner portion, with a slide bush concentric of a central longitudinal axis for the guidance of a cylindrical housing of a gas spring. The outside wall of the slide bush is provided with spaced ribs for the reception and support, radial to the axis, in an upright tube of the column. The ribs are elastically deformable radially to the central longitudinal axis.

Abstract: A central bearing for a bow-shaped rear axle of a motor vehicle is formed of three elastic elements. One central elastic element is arranged directly on a bearing axis support and is pressed by a bearing sleeve. Two additional exterior elastic elements are connected with this bearing sleeve and are supported on a bearing disk which is held on the bearing axis support by a press fit.