Abstract: In order to achieve precise adjustment of cylinders with a four-ring eccentric bearing for printing-machine cylinders under favorable conditions of oscillation and rotation, roller bodies (8, 9, 10) are provided between the three pairs of surfaces (5, 6, 7), which can twist with respect to one another, whereby two double-row cylindrical roller bearings (8, 9) and, as the innermost bearing, a double-row cylindrical roller bearing (10) or needle bearing is provided externally on the side of the moving bearing, and three double-row ball bearings (15, 16, 17) are provided on the side of the fixed bearing.

Abstract: A magnetic disk drive which is to be used for recording and/or reproducing information, and a bearing assembly for use in the same magnetic disk drive. The bearing assembly includes two bearings of different diameters, of which a small-diameter bearing is arranged within an inner periphery of a large-diameter bearing. The two bearings are joined by means of bearing coupling members for connecting respectively inner rings and outer rings of the bearings. The small-diameter bearing is arranged within the inner periphery of the large-diameter bearing, and therefore a height of the bearing assembly can be made thinner to about one and a half times a height of a single bearing. It is therefore possible to make the magnetic disk drive smaller and thinner by employing this bearing assembly.

Abstract: A plain bearing assembly including an inner bearing, outer bearing, and at least one intermediate bearing. The inner bearing has an annular inner bearing surface. The intermediate bearing includes a ring bearing having an annular inner and outer surface. The intermediate bearing also includes bushes rotatably mounted about the inner bearing and rotatable with respect to the bearing ring and outer bearing. The bushes provide a bearing surface adjacent to the annular inner bearing surface of the bearing ring and providing a bearing surface adjacent to the annular outer bearing surface of the bearing ring.

Abstract: An angular contact bearing (100) has a plurality of first and second rolling elements (1,2) interposed between a rotating shaft (3) and a fixed part (4). An outer ring (5) is secured to the fixed part (4). Formed on the inner periphery of the outer ring (5) is a first rolling contact surface (1a) which is in contact with the first rolling elements (1) on the fixed part side at a predetermined angle. An inner ring (8) is secured to the rotating shaft (3) by nuts (9). Formed on the outer periphery of the inner ring (8) is a second rolling contact surface (1b) which is in contact with the first rolling elements (1) on the rotating shaft side at a predetermined angle. Formed on its inner periphery is a third rolling contact surface (2a) which is in contact with the second rolling elements (2) on the fixed part side at a predetermined angle. An Angular member (6) is secured to the outer ring (5). The Angular member (6) has a fourth rolling contact surface (2b) formed on its inner periphery.

Abstract: A roller assembly for a passenger conveyor step chain includes a rolling contact bearing disposed between a bushing and an axle of the roller assembly. The rolling contact bearing improves wear resistance and load carrying capabilities of the roller assembly and step chain. In a particular embodiment, the roller assembly includes a pair of seals and a lubrication chamber. The seals define a sealed region encompassing the rolling contact bearing and lubrication chamber. The seals prevent lubrication from leaking and debris from penetrating into the sealed region.

Abstract: A three-race bearing for rolls or pressure rollers having inner and outer races and a common center race forming an outer roller bearing which is exclusively a radial bearing and the inner roller bearing which is exclusively an axial guiding rolling bearing.

Abstract: An eccentric bearing having three bearing races arranged one over another, of which one with the center ring forms an inner rolling bearing and the other with the center ring forms an outer rolling bearing, wherein the center ring in each instance consists of a bearing ring insert for of each of said two rolling bearings and a supporting ring of castable or injectable plastic between and positioning said bearing ring inserts.

Abstract: An electric drive for a vehicle includes a motor housing; bearing plates closing opposite ends of the housing; roller bearings held in the bearing plates; an electric motor accommodated in the motor housing and including an axially hollow rotor shaft affixed to a rotor and journalling in the roller bearings; a gear housing adjoining the motor housing; a gearing accommodated in the gear housing; a gear coupling the rotor shaft with an input of the gearing; and a first output shaft coupled to an output of the gearing. The first output shaft extends through an end wall of the gear housing and passes axially through the rotor shaft and through the bearing plates. The first output shaft has an end situated externally of the motor housing. The electric drive further has a second output shaft coupled to an output of the gearing. The second output shaft extends through an end wall of the gear housing and has an end situated externally of the gear housing.

Abstract: In a light deflecting apparatus including a rotary polygon mirror in which a disc rotary polygon mirror is fixed to a shaft supported by a gas of a predetermined pressure. The rotary polygon mirror is fixed to the circumferential side of a shaft by direct engagement therewith, and compressed air is supplied to the thrust end surface of the rotary polygon mirror, to use the thrust end surface as a thrust bearing. Thereby, the rotary polygon mirror can be rotated with higher running accuracy.

Abstract: A disk memory drive is presented having a stator and a rotor that is equipped with a centered hub, which hub has a surface onto which one or several hard disks are mountable. The bearing system between rotor and stator comprises two ball-bearings. The first ball-bearing is mounted between the rotor and stator a first distance from a rotational axis, and the second ball-bearing is mounted between the rotor and stator a second distance from the rotational axis, wherein the second distance is greater than the first distance.

Abstract: An electric motor for an electric car, in which an outer ring of a ball bearing used in the non-work side of a rotating shaft is supported fixedly by a rear bracket so that the shaft is fixed in the axial direction move. A cylindrical roller bearing is used in the work side of the rotating shaft, so that the rotating shaft is secured to the inner periphery of the rear end of an output carrier of an epicycle reduction gear and the outer periphery of the rear end of the carrier is supported through a ball bearing by an intermediate bracket. An oil seal is provided for sealing between the intermediate bracket and the rotating shaft, the inner diameter of the oil seal being greater than an outer diameter of the inner ring of the cylindrical roller bearing.

Abstract: A dual drive motive system used to control the movement or position of another system or structure in a first and second embodiment has two motors, two frame members and a ring moveably mounted between the frame members by means of suitable bearings. One of the motors provides continuous relative motion between the ring and one of the frame members which may be secured to a foundational structure. The other motor provides relative motion between the ring and the other frame member which may be secured to a turret structure. This motion avoids the transient disturbances of lubricants. In a third embodiment, the system includes two armatures which share a common stator. In operation, the armatures and stator which are concentrically positioned rotate relative to each other and in opposite directions. In a fourth embodiment, the armatures share a common stator and the armatures are coaxially positioned.

Abstract: The elements of an axially-aligning, eccentrically-adjustable, three-ring anti-friction roller bearing are arranged to compensate for inevitable small deformation and bore alignment errors for the journals of blanket cylinders of printing presses. Rows of rolling elements are disposed between the three bearing rings, the outer one of which has an arcuating curved swing surface. For the purposes of increasing the radial rigidity of the anti-friction mounting and for taking radial forces, the roller bearing rows include cylindrical roller bearings. In addition, there are provided, at least at one axial end, ball bearings or cross-roller axial bearings to resist axial forces. The three bearings rings are braced relative to one another axially and/or radially by a lock nut or the like threaded on the journal for urging the inner bearing ring against the bias of a spring engaging a shoulder on the journal on the other side of the bearing.

Abstract: A scroll-type fluid compressor including a main drive shaft and a clutch assembly. The scroll-type fluid compressor including an external shaft bearing assembly comprising a main drive shaft bearing and a clutch assembly bearing. The clutch assembly bearing includes an inner journal and the main drive shaft bearing mounts directly inside the inner journal such that the clutch assembly bearing forms a housing around the main drive shaft bearing.

Abstract: In a light deflecting apparatus having a motor shaft rotatable at high speed, bearings have a suitable simple construction such that the whole apparatus can be reduced in size and weight.

Abstract: A compound bearing element having a first rolling element with a second rolling element superimposed over the first rolling elements; a compound bearing element assembly having a first race, a second race and a plurality of compound bearing elements; a compound bearing element assembly having a third rolling element superimposed over a second rolling element; and a bearing assembly having a first race, a second race which includes a set portion and a securing portion, and a plurality of bearing elements.

Abstract: The invention relates to a device for mounting a wheel hub (1) on a stub axle (2) of a non-driven wheel in a motor vehicle. The device comprises an outside bearing (5) in the vicinity of the outside free end of the stub axle (2) and an inside bearing (6) in the vicinity of the inside end of the stub axle (2) joined to a steering knuckle (3) or the like. According to the invention, the outside bearing (5) is an anti-friction bearing mounted between the interior surface of the wheel hub (1) and the stub axle (2) for absorbing both radial loads and axial loads, and the inside bearing (6) is an anti-friction bearing mounted between the exterior surface of the wheel hub (1) and the steering knuckle (3) or the like for absorbing only radial loads.

Abstract: The invention relates to a conveyor chain for machines for tensioning lengths of material, with pairs of outer fishplates and pairs of inner fishplates flexibly connected by chain joint bolts and with support members for grippers or needle plates. The pairs of inner fishplates are supported by means of joint sleeves on the chain joint bolts, needle bearings are arranged between the joint sleeves and the chain joint bolts and ball bearings are provided on the outer peripheral surfaces of these chain joint bolts. These ball bearings are constructed like roller bearings with particularly thick outer races, and the outermost outer fishplates rest with a bore clearance on the chain joint bolts. This conveyor chain is distinguished by a simple and stable construction which requires little maintenance.

Abstract: A drive device for pumps consists of a drive pulley to drive a shaft. The shaft assembly includes an inner bearing seated in the housing bore, an outer bearing seated on a neck of a pump cover, a cover disk with an outer edge, covering the outer bearing and the neck of the pump cover laterally from the outside and is connected to the drive pulley, and a center of the shaft, a spring for the automatic play eliminating adjustment of the radial and axial load-supporting outer and inner bearing.

Abstract: A redundant-race bearing system incorporates a pair of ring-shaped race members. The race members are coaxial and axially spaced apart from one another. Each race member has a radial cross-section that includes a plurality of tracks. These tracks form a confining pattern that enables lateral and axial restraint.

Abstract: A plural ring bearing is comprised of at least outer and inner radially superimposed rolling bearings and has an intermediate ring common to the inner and outer bearings. The outer bearing comprises an inclined roller bearing with two rows of cylindrical rollers inclined with respect to one another and to the axis of the plural ring bearing. The inner bearing may have two rows of cylindrical or tapered rollers, and may additionally include a crossed roller bearing.

Abstract: A bearing assembly for a continually variable cone-pulley belt drive transmission includes a primary shaft defining a conical pulley that is rotatably mounted, and an axially displaceable conical pulley that is movable along the axis of the primary shaft. A secondary shaft rotatably mounted parallel to the primary shaft defines an axially nondisplaceable conical pulley and an axially displaceable pulley movable parallel to the axis of the secondary shaft. The pulleys on the primary and secondary shafts are drivably connected by an endless drive belt that engages the pulleys on the shaft at a variable radius, whereby the secondary shaft is driven at a variable speed with respect to the primary shaft. The primary and secondary shafts are mounted in the casing of the transmission by a fixed bearing and a loose bearing. The fixed bearing on the primary shaft has its outer race easily displaceable by an axial-linear guide in the form of a group of ball bearings carried in a bearing cage.

Abstract: An arrangement of roller elements which are guided by means of a guide ring and are arranged between two support rings in which, to reduce the coefficient of friction, deformations are allowed in order to eliminate slippage and decrease friction. The roller elements are each rotatably mounted on and/or by a shaft, and the guide ring is formed to be resilient or yieldable, so that the guide elements can make movements relative to each other. The arrangement is primarily designed as a radial bearing or an axial bearing and can additionally be designed as a frictional drive or transmission.

Abstract: An attitude displacement measurement apparatus including a base, primary bearing means retained by the base, auxiliary bearing means mounted for rotation on the primary bearing means on a given axis with respect to the base, a first rotor mounted for rotation on the auxiliary bearing means on the given axis, a second rotor mounted for rotation on the auxiliary bearing means on the given axis, a first drive mechanism coupled to the first rotor and operable to produce rotation thereof on the auxiliary bearing means in one sense on the given axis, and a second drive mechanism coupled to the second rotor and operable to produce rotation thereof on said auxiliary bearing means on the given axis in a sense opposite to the one sense.

Abstract: Serial safety bearing assembly includes two concentric bearing sets and an actuatable device for selectively switching to engage either the inner or the outer of the two concentric bearing sets upon failure of one set or to alternate to first one set and then the other set thus to prolong the working life of the two concentric bearings.

Abstract: Bearing assemblies use serial bearings in order to extend the operational speeds for the bearings. Speed distribution planetary gears are mounted upon an intermediate ring disposed between two other rings. Each of the rings has bearing surfaces which are separated from adjacent bearing surfaces by ball-bearings or other bearings. The planetary gears mesh with gear teeth upon the first and second rings so as to cause rotation of the intermediate ring at a speed intermediate the relative speed between the two other rings. The speed distribution planetary gears may be used in a serial thrust bearing assembly serial radial bearing assembly, or a serial radial thrust bearing assembly.

Abstract: A support for a textile tensioning machine conveyor chain and wherein a first needle bearing assembly is arranged between the joint bolt and a bushing and a second needle bearing assembly is arranged between the bushing and a protective roller. Such a chain support can be provided with permanent lubrication even at a high conveyor speed and thus requires little maintenance.

Abstract: A rotary storage structure (10) has a supporting frame (12) provided with circular tracks (29, 35) provided with rollers (31) which support independently rotatable sub-frames (15, 16). Each sub-frame (15, 16) is provided with pairs of co-axial rings (36) which support self-righting storage platforms (37) for items (e.g. motor vehicles) loaded into, or from, the structure (10) from loading platforms or ramps (44). A cable drive (42) is provided to rotate each sub-frame (15, 16) to enable the storage platforms (37) to be positioned adjacent the loading platforms or ramps (44).