Abstract: A hydrodynamic grooved bearing device in which a shaft is inserted into a hole formed in a bearing housing and one of the shaft and bearing housing is rotated, thereby the rotated member being supported includes a plurality of grooves formed on the shaft or an inner peripheral surface of the bearing housing for generating a dynamic pressure of fluid filled between the shaft and the bearing housing. The plurality of grooves are arranged side by side with a substantially certain pitch in a direction of rotation. Each of the grooves comprises a pair of groove portions slanted relative to the direction of rotation such that a distance between the pair of groove portions becomes narrower towards the direction of rotation and a connecting groove portion connecting the narrowest distance between the slanted groove portions. The connecting groove portion is extended in a direction substantially perpendicular to the direction of rotation.

Abstract: A water pump apparatus has an impeller mounted on a driven rotational shaft rotatably supported by mutually spaced bearing portions in a body member. In order to lubricate the sliding bearing surfaces between the bearing portions and the rotational shaft, oil seals surrounding the rotational shaft define first and second oil tanks, while a third oil tank is defined between the bearing portions. Spiral oil circulating grooves pump oil from the first and second tanks along the sliding bearing surface to the third tank in order to lubricate the sliding bearing surfaces. Oil passages in the bearing portions permit oil to be returned to the first and second tanks. An annular flange fitted on the rotational shaft fits between the bearing portions to provide axial bearing support for the rotational shaft. Excess oil pressure arising due to heat build up is relieved by a check valve mounted in the body member.

Abstract: A valve operating system for an automotive internal combustion engine. The valve operating system is comprised of a plurality of bearing sections formed in a cylinder head of the engine and adapted to rotatably support a camshaft formed with a plurality of bearing journal sections. Each bearing section has a generally cylindrical bearing surface defining a bore in which each camshaft bearing journal section is disposed. The peripheral surface of the camshaft bearing journal section is slidably contactable with the bearing section bearing surface. In a cross-section to which the axis of the bore is perpendicular, the bearing surface has a first diametrical distance in which reaction of a valve spring for an intake or exhaust valve is applied, and a second diametrical distance perpendicular to the above-mentioned direction.

Abstract: A device for lubricating hydrodynamic bearings comprising an oil tank (2) and a pump (1) connected to the bearings (8) through a delivery line (5). The delivery line (5) has a value (9) placed below the oil level in the tank (2) . The valve has a casing with an inlet port (10) and an outlet port (11) end an auxiliary port (14). A movable member (12) with an axial passage (13) is mounted in the casing to take two positions so that in the first position it shuts-off the auxiliary port (14), the port (10) communicating with the port (11) via the passage (13). end in the second positions, it opens the port (14), the outlet port (11) communicating with the tank (2) through the port (14).

Abstract: A gas bearing including a support having a longitudinally extending cylindrical bore, of a predetermined diameter and an elongated generally cylindrical shaft rotatable within the bore of the shaft being of a predetermined diameter less than the diameter of the bore in the support. The outer surface of the shaft is uniquely provided with a plurality of circumferentially spaced, longitudinally extending recesses of a predetermined depth, each of which defines an elongated, generally radially outwardly extending step of a predetermined height. The outer surface of the shaft is also provided with a plurality of circumferentially spaced, longitudinally extending grooves of a predetermined depth disposed proximate the steps.

Abstract: A bearing assembly for a spinning or twisting spindle shaft is provided which includes at least one support bearing device for supporting a shaft. A lubricant feeding and discharging duct member is provided for feeding and discharging lubricant to and from the support bearing device. The lubricant feeding and discharging duct member includes an outlet discharging member for discharging lubricant out of a bearing housing.

Abstract: The invention relates to a method for preventing leaks in a propeller shaft bearing arrangement including a plain bearing (2), which is lubricated with oil or water and which supports the propeller shaft (1) extending through an opening in the body (4) of a hull, and packing members (6,7) for keeping the lubricant in the lubrication space and for preventing water from entering the bearing arrangement. According to the invention, the pressure vibrations occuring in the lubricant are equalized arranging, in the lubrication space, a medium possessing a high compressibility, which medium by means of changes in volume receives and equalizes said pressure vibrations.

Abstract: An automatic lubricant metering device consists essentially of a housing (4), from inside of which a piston (5) is conveying a lubricant (15) through a feeder line (12) to the lubricating location (2) of a revolving shaft (1). The automatic feature consists of that the spring-loaded piston (5) is connected with a pin (6) made of an abradable material. The advance of the piston (5) is a function of the abrasion of the pin (6) on the appropriately roughened surface of the shaft. The lubricant is contained in a compressible bellows (11) equipped with a feeder line (12) to the lubricating location (2). The feed to the lubricating location is conducted in the area of the shaft through a pipe (13) located preferably without contact in a center bore (14) of the shaft. The outlet of this pipe opens into a radial bore (16) connected with the lubricating location (16).

Abstract: An assembly for the leakage-free removal of bearing oil from sliding bearings for rotating shafts of high-speed machines, includes a sliding bearing axially divided into bearing cups, contactless shaft seals near bearing end surface preventing escape to the surroundings of bearing oil fed to surfaces of the sliding bearing, an annular oil collecting canal disposed at least at one side of the sliding bearing between a shaft seal and a bearing end surface having an outer peripheral wall with an arcuate cutout formed therein with a slot-shaped opening arc defining an outlet opening through which the collecting canal discharges an oil flow, the opening arc covering a circumferential angular range of the shaft extending at least from the geodetically lowest point of the outer contour of the collecting canal at most to a position of the outer contour defined by the parting line of the cups as seen in shaft rotation direction, an oil collecting box with an oil flow space and an inlet opening matched to the outlet cr

Abstract: The invention relates to a method for preventing leaks in a propeller shaft bearing arrangement including a plain bearing (2), which is lubricated with oil or water and which supports the propeller shaft (1) extending through an opening in the body (4) of a hull, and packing members (6,7) for keeping the lubricant in the lubrication space and for preventing water from entering the bearing arrangement. The pressure vibrations occuring in the lubricant are equalized by arranging, in the lubrication space, a medium prossesing a high compressiblility, which medium through changes in volume receives and equalizes said pressure vibrations.

Abstract: A slider bearing assembly has a bearing housing having a bore centered on an axis and having an inside bore surface and a uniform composition plain bearing liner in and coaxial with the bore and having an outer surface delimited by two axially oppositely directed end faces, an axial middle region between the end faces, and an inner surface centered on the axis. The bore and outer surfaces are in mutual surface contact in a contact area and normally directly engage each other without the interposition of a liquid lubricant. The bearing liner is fixed in the housing against any movement relative thereto other than micromovements. A movable part has a journal centered on the axis and radially outwardly confronting and normally engaging the inner liner surface. This movable part is nonradially movable relative to the liner and housing, that is it can only move axially and/or angularly relative to the liner. Drainage channels formed in at least one of the surfaces at the contact area extend to the axial end faces.

Abstract: A wrapped bush adapted to be force fitted into an axial opening of a bearing housing is formed at its outer peripheral surface with one or more oil grooves. The oil groove or grooves are formed by press work such as embossing to extend obliquely relative to a line parallel to the axis of the wrapped bush such that they are in parallel to or symmetrical with each other with respect to the line. Upon wrapping a metal strip into the wrapped bush, the oil groove or grooves neither lessen the effect due to interference on the wrapped bush nor produce any crease or crack at or near the oil grooves, thereby attaining out of roundness to a desired extent.

Abstract: A vibration-controlling bearing for controlling vibration developing in a rotary shaft supported in a housing of a rotary machine including a bearing member of a cylindrical shape interposed between an outer peripheral surface of the rotary shaft and an inner peripheral surface of the housing and spaced apart therefrom by respective gaps. A dynamic pressure is generated between an inner peripheral surface of the bearing member and the outer peripheral surface of the rotary shaft. Communicating ducts are formed in the bearing member for transmitting a portion of the dynamic pressure generated to a gap between the outer peripheral surface of the bearing member and the inner peripheral surface of the housing.

Abstract: A ferrofluid thrust and radial bearing assembly for a rotatable shaft element, which assembly comprises: a housing characterized by a shaft-receiving space, to define a radial bearing inner surface and a thrust bearing surface at the one end of the shaft-receiving space; a shaft element within the shaft-receiving space, one end of the shaft element disposed to rotate on the thrust bearing surface, and the other end of the shaft extending from the other end of the housing; a ferrolubricant in the shaft-receiving space, to form a lubricant for the thrust bearing and the radial bearing assembly; and a ferrofluid exclusion seal at the other end of the housing and about the other end of the shaft-receiving space, the exclusion seal comprising an annular permanent magnet and at least one annular pole piece, one end of which extends into a close, noncontacting relationship with the exterior surface of the shaft, to form a radial gap, and the ferrofluid within the shaft-receiving space defining a ferrofluid seal at t

Abstract: In a method of assembling a wick and bearing, the wick is passed into a bore of the bearing through one end thereof, and bridge means on the bearing spanning the bore thereof is captured between bifurcated sections of the wick. In another method of assembling a wick and bearing, wiping sections of the wick are respectively disposed in slots in the bearing intersecting with a bore thereof and a bridge section on the wick is twistably displaced between the wiping sections thereof so as to span across a peripheral portion of the bearing.

Abstract: A unit bearing motor includes a frame member having opposite sides and a bearing post thereon, the bearing post having first and second opposite ends with first and second spaced bearing portions respectively extending axially inwardly from the ends. The bearing post has a first portion extending from one side of the frame member to the first end and a second portion extending from the other side of the frame member to the second end. The shaft of the machine is rotatably supported in the bearing portions and has a portion extending from the first end of the bearing post for supporting the rotor of the machine. A cup member is secured to the other side of the frame member and encloses the second portion of the bearing post to define a lubricant reservoir. The frame member has openings formed therethrough outwardly from the bearing post and communicating with the reservoir.

Abstract: There is disclosed a combined thrust and support bearing arrangement wherein the shaft line can be constructed to be relatively short and wherein there does not arise any lifting of the turbine housing. The support or journal bearing and the thrust bearing are arranged in a respective bearing support within a common housing. Holders or holder elements are arranged at the bearing support of the support bearing over its circumference. These holder elements piercingly extend without contact through the bearing support of the thrust bearing. A common oil supply is provided for the thrust bearing and the support or journal bearing.

Abstract: A journaled bearing assembly including a pair of semicircular half shells defining a sleeve bearing with an outer surface and an inner bearing surface with the surfaces extending axially between laterally spaced opposite ends and circumferentially between oppositely disposed parting faces with the bearing surface being concave and the outer surface being convex axially between the ends while in the free state and held at gage diameter. In the free state the terminal portions adjacent the parting faces are on a longer radius than the radius of the central portion. When held at gage diameter the terminal portions are on a radius equal to the radius of the central portion. The bearing sleeve is disposed in a bearing housing with the bearing surfaces in engagement with a journaled portion of a shaft. The bearing housing includes clamping members in clamping engagement with the outer surfaces of the half shells to apply radical forces to the half shells.