Abstract: A thrust bearing and method of assembling a thrust bearing, the bearing comprising: an outer housing having a substantially circular base, wherein a cylindrical side wall and a central post are upstanding from the base; an outer ball seated on and at least partially within the outer housing; and an inner ball mounted on the central post, wherein the outer ball is sandwiched between the inner ball and the outer housing.

Abstract: A low profile gimbal system is provided to greatly reduce the generation of moments about a pivot point of the gimbal system during polishing processes. The gimbal system is adjustable so that a preferred balance between stiffness and friction may be selected as appropriate for a variety of different polishing conditions. A locking feature ensures that the adjustment setting is maintained during polishing.

Abstract: A low profile, low hysteresis force feedback gimbal system is provided to greatly reduce the generation of moments about a pivot point of the gimbal system during polishing processes. A load cell is placed directly above a contact pin of the gimbal system to provide a very accurate feedback measurement of the amount of downward load applied to a substrate during polishing.

Abstract: A bearing arrangement (15), in particular for a device (1) with a rotatable disc or a magnetic-tape apparatus (101) has a shaft (19) which is connected to an auxiliary member (23) via a hinge (21). The shaft (19) is radially supported and the auxiliary member (23) is axially supported. As a result of the connection via a hinge (21) the auxiliary member (23) can align itself without the alignment of the shaft (19) being influenced, so that the requirement imposed on the accuracy of the bearing surfaces of the shaft (19) relative to the bearing surfaces of the auxiliary member (23) can be less stringent.

Abstract: An improved bearing arrangement for a high-speed, preferably vertical, shaft having a bearing body which takes up both the axial and the radial bearing forces. The bearing body is clamped or mounted in a fixed support solely by means of at least one elastic membrane-type element, e.g. a disc-shaped membrane, which extends in the radial direction so as to provide for the elastic return of the bearing body and the shaft to an initial reference position in both radial and axial directions.

Abstract: A ceramic bearing comprising a ceramic-made outer ring provided with a non spherical curved inner slide face, and a ceramic-made inner ring provided with an outer slide face so curved as to match with the curved inner slide face formed in the inner circumference of the ceramic outer ring and a shaft hole through which a shaft extends, which shaft extending or passing at the axis of the slide face of the ceramic inner ring coincidently.

Abstract: Compensating device able to compensate the load acting on e upper bearings (13-17) of shafts of rolls (10) supported at only one end on rolling stands (18), such rolls (10) comprising shafts (11) having at least two bearings (13-14), an upper bearing (13) and a lower bearing (14), the device comprising springs (20) able to provide a resiliently yielding constraint between such bearings (13-14).

Abstract: A wet motor gerotor pump has an armature including first and second shaft ends. The outlet housing has a bore with a bushing mounted therein for positioning the second shaft end and for rotatably supporting the second shaft end, the bushing has an exterior periphery with a raised portion extending circumferentially thereabout and radially away from the second shaft end portion, the raised portion being in contact with the bore to permit the pivoting of the armature shaft axis thereat in response to an axial alignment of the first shaft end portion; and anti-rotation means coupling the bushing and the outlet housing to prevent circumferential rotation of the bushing relative to the housing while permitting the second shaft end to rotate within the bushing.

Abstract: A semi-articulated railway power truck has in preferred embodiment a pair of dual axle sub-trucks semi-articulated for creep force balancing turning control while retaining freedom of rocking and relative longitudinal motion. An equalized centered bolster suspension and low traction rod linkage maintain high equalization of loads and tractive forces at the wheels to provide overall high adhesion and curving efficiency.

Abstract: A lubricated bearing has a rotatable structure which includes a housing with an opening at one end, a bearing cup and a retaining member. The retaining member grips the exterior of the bearing cup and the interior of the housing to secure the bearing cup within the housing with its mouth towards the opening and with lubricant spaces between the housing and bearing cup both above and below its rim. A stationary member has a spherical part which fits within the bearing cup to provide relatively rotatable bearing surfaces and a shaft which extends out of the housing through the opening.