Abstract: There is disclosed a half thrust bearing of a substantially semi-circular shape. A thrust relieve 22, slanting toward a confronting end of the half thrust bearing progressively away from a bearing surface of a half thrust bearing, is formed at each of circumferentially-spaced opposite end portions of the bearing surface by pressing (cold forging), so that those portions of the bearing surface, disposed adjacent respectively to the thrust relieves 22, are higher in strength than the other portions of the bearing surface. With this construction, even if a thrust collar of a crankshaft abuts against localized portions of the bearing surface disposed adjacent to the thrust relieves 22, a bearing alloy will not subjected to premature fatigue and separation.

Abstract: A mechanical face seal for use in a pump. The mechanical face seal including a seal head assembly, a seal seat assembly opposite and in contact with the seal head assembly. The seal head assembly including a gimbal ring engaging a first and second pair of gimbal pads. The first pair of gimbal pads is integral with an impeller insert and the second pair of gimbal pads is integral with a seal washer. The gimbal ring will continually adjust to misalignments of the pump and the seal components when hydraulic forces overcome the spring load of the seal head assembly and clamps the gimbal ring between the two pair of gimbal pads.

Abstract: A roller chain includes a sintered oil-impregnated bushing loosely fitted coaxially on a connection pin for outer plates, a roller fitted for rotation on and around the sintered oil-impregnated bushing, and a needle roller bearing interposed between the sintered oil-impregnated bushing and the roller and having grease charged therein. Lubricant of the sintered oil-impregnated bushing side and the grease of the needle roller bearing side supplement oil components to each other and the overall amounts of the grease and the lubricant of the roller chain can be effectively utilized to allow the roller chain to be used without supplement lubricant for a long period of time. Thus, the roller chain can suppresses a local out-of-oil condition and make effective use of the overall amount of available oil components of grease to assure a reduced frictional resistance upon running of the roller chain for a long period of time thereby to exhibit a superior abrasion resistance and durability.

Abstract: A flat coreless vibrator motor has a case and a flat generally sector-shaped armature rotor. The rotor has a body that comprises a first part made of a first synthetic resin having a density of less than 1.8 and a second part made of a second synthetic resin having a density of greater than 5.0. The first part is disposed generally radially inside of the second part. A plurality of flat armature coils are molded in the first part and arranged at a predetermined pitch angle within an angular range of 180.degree. about the rotating axis of the rotor in non-overlapping relationship with one another. Alternatively, at least a portion of the second part is interposed between a field magnet of the motor and a cylindrical side plate of the case.

Abstract: A high speed thrust bearing assembly is provided for use on a hand-held circular saw. The thrust bearing assembly is held in place within a plastic housing which has a through hole therethrough. The plastic housing further has a first counterbore which is larger than the through hole, and a second counterbore which is larger than the first counterbore. A high speed thrust plate is placed within the plastic housing. The thrust plate has a flange section and a bearing section. The bearing section has an indentation therein. The thrust plate is placed within the plastic housing so that the bearing section is disposed through the through hole of the plastic housing with the flange section being held within the first counterbore. A sleeve bearing is thereafter placed within the second counterbore and surrounds a rotating shaft. The rotating shaft has a terminal end with a cylindrical projection thereon which matingly fits within the indentation of the bearing section in the thrust plate.

Abstract: According to this invention, in a stepping motor in which bearings are disposed at two end portions of a motor shaft which is coaxially fixed to a magnet rotor, one bearing of the motor shaft arranged in a motor case, a bobbin serving as a coil frame, and the positioning portion of the motor holder are integrally formed of a resin. In addition, two projecting pieces that protrude outward are formed on the bearing on the motor holder side of the stepping motor. A projecting portion is formed on each projecting piece. A positioning rotation regulating hole which is fitted on the projecting portion to regulate rotation and an opening for passing the projecting piece are provided to the bearing support portion of the motor holder.

Abstract: A thrust has a pair of axially extending positioning and retaining members which align with respective recesses formed in a transmission housing component in which the thrust washer is to be retained. The retaining member has a resilient portion which is deformable to accommodate interference fit with the respective recess thereby retaining the washer in situ. The positioning member provides a locating element and prevents rotational displacement of the washer during assembly of the housing to the transmission.

Abstract: The axial bearing includes a first ring and a second ring. During operation of the axial bearing, the first ring rotates with respect to the second ring. Over time the foregoing rotation produces wear of the first ring; consequently, exposes layers of the first ring to the second ring. The different layers of the first ring produce variations in the coefficient of friction within the axial bearing. If the axial bearing is associated with a drive motor, then the variations in the coefficient of friction change the load on the drive motor. The change in load upon the drive motor may be monitored to indicate axial bearing wear or the need for axial bearing replacement.

Abstract: A thrust washer for use in a universal joint having a preloading thrust surface includes a center aperture, an outer surface and an inner surface. A portion of the inner surface defines a thrust surface which contacts the outer end of the trunnion in only a limited contact area. The thrust surface may be located adjacent the outer circumference of the center aperture in the thrust washer. The thrust surface contacts only that portion of the outer end of the trunnion which is adjacent the outer circumference of the lubricant passageway extending through each trunnion. In one embodiment, the inner surface is tapered outwardly such that the thrust surface is defined by the thickest portion of the tapered surface. In another embodiment, the inner surface includes a plurality of protuberances located around the circumference of the center aperture such that these protuberances define the thrust surface.

Abstract: An improved rotating basket extractor is provided having improved discharge means comprising a hopper section having a solid material entry and solid material exit end. The cross sectional area of the solid material entry end is smaller than the exit end so as to help prevent the agglomeration of solid material in the discharge hopper as it exits from the rotating baskets to a dual screw conveyor for subsequent travel to a discharge chute. The discharge hopper and the housing for the dual screw conveyor comprise slot means to provide for additional drainage of miscella therethrough. Additionally, the axially disposed rotatable shaft, supporting the rotating baskets, is journalled in upper and lower bearings located outside the outer housing member for ease of maintenance. The lower thrust bearing is mounted for direct support by the flooring substrate below the outer housing of the extractor to help minimize bearing contamination and corrosion.

Abstract: A bearing arrangement comprised of a substrate having a plurality of self-lubricating polyimide graphite-fiber reinforced composite bearing members secured to provide a bearing surface. The bearing arrangement being well suited for use under harsh conditions, including high temperatures, high impacts, and large loads.

Abstract: A bearing assembly for bearing tensile and compressive axial loads. In preferred embodiments, the invention is a bearing assembly for use downhole, including a first member and a second member with coinciding central longitudinal axes, and a thrust bearing subassembly in a chamber between the first and second members defined by two shoulders of the first member and two shoulders of the second member. The second member is free to rotate, and has at least limited freedom to translate axially, relative to the first member. The thrust bearing subassembly's overall axial length is such that the first member can translate axially relative to the second member between a first configuration in which the thrust bearing subassembly bears a tensile axial load and a second configuration in which it bears a compressive axial load.

Abstract: A heat roller device includes a frame, a hollow cylindrical fixing roller accommodating therein a heat source for fixing a toner image on a recording medium; a driving gear for driving the fixing roller; a first flange shaped bearing having a base attached to the frame and a projection extending from the base in order to accommodate the driving gear, for rotatably supporting one end of the fixing roller; and a second flange shaped bearing having a base attached to the frame, a projection extending from said base and a pair of hooks integrally extending from the projection for preventing movement of the fixing roller in its longitudinal axis, when the fixing roller is driven by the driving gear.

Abstract: A resilient annular bearing positionable around a rotating shaft which self-adjustingly stabilizes the shaft with respect to a sleeve in which the shaft rotates. The bearing has opposite undulating surfaces, made up of a series of alternating peaks and valley, which provide resiliency. The opposite undulating surfaces extend radially, axially or obliquely to provide radial or axial stabilization or both. The peaks may be plateaued or shaped like a truncated pyramid.

Abstract: A thrust bearing system for use in a conical rock crusher is located between a rotational eccentric mechanism and a stationary frame of the rock crusher. The thrust bearing system comprises a stationary bearing and rotatable bearing, each bearing including an annular, generally flat plate centered about a bearing axis. Each flat plate has a generally planar wearing surface and an opposite surface. The wearing surface of the rotatable bearing is configured for concentric, sliding engagement with the wearing surface of the stationary bearing. The wearing surface of the rotatable bearing also includes a plurality of lubrication grooves. Each groove has a length extending in a radial direction of the annular plate from an inner wall of the annular plate across the wearing surface to an outer wall of the annular plate. Each groove has a generally triangular cross section throughout the entire length of the groove.

Abstract: The axial bearing includes a first ring and a second ring. During operation of the axial bearing, the first ring rotates with respect to the second ring. Over time the foregoing rotation produces wear of the first ring; consequently, exposes layers of the first ring to the second ring. The different layers of the first ring produce variations in the coefficient of friction within the axial bearing. If the axial bearing is associated with a drive motor, then the variations in the coefficient of friction change the load on the drive motor. The change in load upon the drive motor may be monitored to indicate axial bearing wear or the need for axial bearing replacement.

Abstract: An improved rotating basket extractor is provided having improved discharge means comprising a hopper section having a solid material entry and solid material exit end. The cross sectional area of the solid material entry end is smaller than the exit end so as to help prevent the agglomeration of solid material in the discharge hopper as it exits from the rotating baskets to a dual screw conveyor for subsequent travel to a discharge chute. The discharge hopper and the housing for the dual screw conveyor comprise slot means to provide for additional drainage of miscella therethrough. Additionally, the axially disposed rotatable shaft, supporting the rotating baskets, is journalled in a thrust bearing provided contiguous to the flooring substrate. Location of the thrust bearing there helps to minimize bearing contamination and corrosion.

Abstract: A "pancake-like" thrust bearing arrangement with gravity-fed lubrication is angular to a horizontal plane and has a top edge above such plane. A load-support structure oscillates on the bearing. Such bearing has a lubricant feed aperture at the top edge and plural lubrication grooves formed in the flat bearing face and connected to such aperture by feed passages. The grooves are oriented so that they "run downhill," i.e., so that they intersect a circle concentric with the bearing center. Grease moves by gravity along the grooves which are "closed-ended" to help prevent premature expulsion of grease from the bearing face.

Abstract: A combined journal-thrust bearing assembly includes a bearing body formed of upper and lower sections secured together at an axial plane. To the axial ends of the bearing body, thrust rings are removably mounted with the thrust rings also being formed of segments, the ends of which lie in the axial plane. Extending through a bore defined by the bearing face of a journal liner is a rotating shaft having a pair of spaced collars. The collars abut bearing faces of the thrust rings to prevent axial movement of the shaft relative to the bearing assembly. Disassembly of the bearing body about the axial plane facilitates repair or replacement of the bearing body sections, the liner, or worn thrust rings independently of one another. An oil delivery system is also provided for lubricating the interface between the shaft and the journal bearing face as well as lubricating the interface between the thrust bearing faces and the shaft collars.

Abstract: A mud motor bearing assembly is defined by and constructed with a support or base ring having an exposed upper or planar face. On the planar face, a number of PCD disc are attached to define a bearing surface at a common plane. The improved bearing assembly further includes a separate ring or an integral lip serving as a deflector ring brazed to the face of the support ring. The brazed deflector ring alters the fluid flow patterns of drilling fluid in the bearing assembly to reduce support ring erosion.

Abstract: A positive displacement pump and thrust bearing assembly having a housing defining an internal fluid chamber having front and rear inner walls. A rotor having a front face and a rear face is positioned in the fluid chamber. Each of the faces of the rotor is spaced apart from a corresponding inner wall of the fluid chamber to define predetermined clearances therebetween. A shaft is connected at a first end to the rotor to effect rotation thereof. A sealed container surrounds and encloses a second end of the shaft and is in fluid communication with the fluid chamber. The thrust bearing assembly is positioned within the container and includes an adjusting sleeve and an adjusting plate. The adjusting sleeve is attachable to the housing and includes a central bore through which the shaft extends. The adjusting plate is connectable to the shaft such that the sleeve is located between the housing and the adjusting plate.

Abstract: A bearing system in a motor for a floppy disk drive (FDD) apparatus includes a protective cap mounted to one side of the motor, a first pivot bearing arranged movable to and from the protective cap in an axial direction of a rotary shaft, a thrust spring provided for urging the first pivot bearing in the axial direction of the rotary shaft, the rotary shaft having a rotor fixedly mounted thereto and rotatably supported at one end by the first pivot bearing and at the other end by a second pivot bearing mounted to a base for installation of the motor, and an alignment bushing arranged through which the rotary shaft of the motor extends without direct contact and closely fitted into a positioning hole provided in a plate to which the motor is secured. The rotary shaft remains not in direct contact with (spaced apart from) the alignment bushing and, acting as a leadscrew, can thus rotate at a higher accuracy, eliminating intrinsic drawbacks of the FDD motor.

Abstract: A bearing having an inner section that is easily snapped into an outer section to form the bearing. The inner section includes a cylindrical ring portion and an exterior-extending, locking ring portion. The outer section includes a cylindrical ring portion and an interior-extending, locking ring portion. When formed of self-lubricating plastic, this bearing is light-weight, thin and inexpensive. Dimensions can be selected to make this bearing easy or difficult to disassemble.

Abstract: The invention concerns a diamond bearing assembly for a downhole motor. The assembly (10) includes at least one set of opposing, relatively rotating thrust bearing rings (20, 22) each of which includes an annular support element (24, 30) and PCD compacts (26, 32) carried by the support elements. The PCD compacts of the bearing rings oppose one another at a thrust bearing interface (80). Shear limiting means (96, 110) are provided. These means are arranged to shear if frictional forces between the opposing PCD compacts at the thrust bearing interface exceed a critical level. This eliminates relative rotation between the bearing rings and avoids possible overheating and thermal degradation of the PCD. The shear limiting means can also serve as an alignment means to ensure correct axial alignment of the bearing components. The bearing assembly may also include a compact radial bearing capability.

Abstract: The invention concerns a diamond thrust bearing assembly for a downhole motor. The assembly (10) includes at least one set of opposing bearing rings (20, 22), each of which has an annular support element (24, 30) and a plurality of PCD compacts (48, 62) carried in circumferentially spaced relationship by the support element. The PCD compacts present opposing bearing surfaces (52, 66) with the bearing surfaces (66) of the compacts of one bearing ring in each set being circumferentially longer than the bearing surfaces (52) of the compacts of the other bearing ring of the set.

Abstract: A process for making an individual thrust bearing assembly having an inner race and a filament wound outer race integrally formed on the inner race for rotation relative thereto and to resist axial thrust loads and the bearing made thereby. To perform the process a mandrel is provided. An inner race that includes an outer peripheral surface having a bearing quality finish and one or more annular inner race axial thrust resisting areas is mounted on the mandrel. The formation of the outer race is initiated by applying a hardenable thixotropic resin to the outer peripheral surface of the inner race to fill the annular inner race axial thrust resisting areas and to form outer race axial thrust resisting areas mating with the inner race axial thrust resisting areas.

Abstract: A method of forming a bearing assembly is set forth. A PCD disk typically of circular construction is joined to a cylindrical plug formed of support metal. The plug is registered with respect to an internal shoulder in a passage formed in a ring for the bearing assembly. Multiple PCD disks are installed in the same fashion. In assembly, the disk is attached to the cylinder, the cylinder is wrapped in brazed material, then the cylinder with the brazed material wrapping is registered on an internal shoulder in a drilled passage in the bearing assembly. A brazing temperature which is too low to damage the material is applied to complete joinder. Then, multiple disk faces supported by individual disk in a circle around the bearing assembly can be lapped to assure that they are brought to a common height with respect to a reference plane.

Abstract: A bevel gear transmission for a marine outboard drive having hydraulically actuated clutches for selectively coupling oppositely rotating bevel gears to a shaft to affect either forward or reverse drive. The bevel gears are each supported on the shaft by thrust bearings and are on the outer sides of the bevel gears and are urged into engagement with the thrust bearings by coil compression springs that also act to release the respective clutches. As a result of this arrangement, a constant lash is maintained between the bevel gears regardless of whether they are transmitting a driving thrust or not.

Abstract: A gate valve has a housing for a valve seat, and an attachment which extends outwardly from the housing and constitutes an extension thereof. A cap is secured to the attachment at the end of the latter remote from the housing, and a plate which traverses the attachment is held between the cap and the attachment. An externally threaded, non-rotary valve stem extends between the cap and the housing and passes through the plate. The valve stem meshes with an internally threaded, rotatable sleeve which receives the valve stem and is connected to a handwheel. The sleeve is at least partially confined by the cap and the plate, and both the cap and the plate are provided with bearing locations for the sleeve.

Abstract: A non-reversible thrust washer is provided. One corner of the thrust washer is curved to abut against a shoulder in the element to which the thrust is being transferred. The other portions of the thrust washers are held in a groove in the part from which thrust is being transferred. The groove is asymmetrical and the thrust washer is provided with a corresponding asymmetry so that the thrust washer cannot be inserted into the groove backwards. The thrust washer preferably is manufactured out of sintered powdered metal in a die having the curved portion formed in the die, with the punch having the asymmetrical portion formed in the punch.

Abstract: A plastic part is molded of a plastic with an inner body of crystalline plastic and an outer surface layer of an amorphous plastic. The amorphous surface layer withstands friction loading at least during an initial break-in period. In one embodiment, the amorphous surface is formed by using a higher plastic melt temperature and/or a lower mold temperature than normal. In another embodiment, an intermediate part is molded as a crystalline intermediate part, and a surface layer is heated and quenched to form the amorphous surface layer on the final part. A bearing cage is molded by injecting the plastic melt at a single point intermediate the ends of a single bar of the bearing cage to permit formation of the desired amorphous layer on rails connected to the ends of the bars.

Abstract: A bearing comprising a first side in alignment with a radial axis and a second side opposite said first side; said first side including a bumper for withstanding thrust, extending outwardly therefrom; and an inner-axial surface in alignment with an axial axis and an outer-axial surface opposite the inner-axial surface.

Abstract: A shaped part having members that are positively interconnected via thermal treatment. The shaped part includes a metallic member having a first flange that is delimited by an outer contour of the metallic member and projects essentially at right angles therefrom. The first flange defines a recess-like opening having a base in which is provided a circumferential groove that extends essentially parallel to the first flange. A second flange is formed between a base of the groove and a contiguous surface of the metallic member. The shaped part also includes a ceramic member that is received in the recess-like opening. Prior to creation of the positive interconnection between the metallic member and the ceramic member, at least the metallic member is heated up.

Abstract: A self-sealing journal assembly for use with a load shaft of a development apparatus includes a bearing member, a sliding member that is keyed to a shaft member, and that is forced into contact with the bearing member by a plurality of deflectable cantilever spring fingers.

Abstract: A hermetic compressor including a hardened cylindrical pin bearing disposed through the crankshaft permits a line contact between the crankshaft and bearing hub for a more efficient compressor. The pin bearing reduces friction while increasing compressor efficiency. In one embodiment, the hardened steel pin is constructed in two parts permitting rotation within the crankshaft. In another embodiment, hardened metal sleeves surround the cylindrical bearing pin allowing.

Abstract: Thrust friction bearings with bent holding lugs wherein the holding lugs depressions are formed in the slide layer before the bending of the lugs. In one example, one shallow groove is stamped into an integral bracket forming a holding lug. In another example, several depressions are formed in rows, instead of grooves. The grooves or rows of depressions extend in a direction across the lug, preferably lying at an angle to the axis of curvature. Thus, when the holding lugs are formed by bending, damage to the slide bearing material will not occur.

Abstract: This invention is to provide a ceramic sliding bearing which is possible to support the axis to which the radial load and the thrust load are applied simultaneously or selectively, and also this invention is to provide a bearing having a small number of parts by constructing the inner and the outer rings by means of ceramics.

Abstract: A ceramic bearing includes a fixed ring and a rotary ring. The fixed ring has an outer cylindrical surface dimensioned for an interference fit in a bore of a machine. The fixed ring also has an end surface for contacting a bottom of the bore, and an opposite end surface which includes an annular groove. The groove has a curved bottom surface and a pair of opposite wall surfaces. The rotary ring has an inner cylindrical surface dimensioned for receiving a journal of a rotatable shaft. The rotary ring also has an end surface which includes an annular projection. The projection has a curved top surface and a pair of opposite side surfaces. A radial load on the shaft is transmitted to the machine through surface contact of the projection side surfaces and the groove wall surfaces. A thrust load on the shaft is transmitted to the machine through surface contact of the projection top surface and the groove bottom surface.

Abstract: A four cycle outboard engine having a crankshaft substantially vertically oriented when running A cylindrical block supporting the crankshaft. A thrust metal composed of a pair of semi-circular plates of different thicknesses are mounted in semi-circular grooves of differing depth formed on the bearing portions of the cylinder block and mounted in such a way that the semi-circular plate having the greater thickness contacts the end surface of the semi-circular groove having the shallower depth.

Abstract: A machine part having a rolling or sliding surface formed with a plurality of minute recesses at random with the SK value less than zero in both the longitudinal and circumferential directions, and the area ratio of the recesses to the whole rolling surface being 10-40 percent.

Abstract: A support yoke pressed against a rack bar to preload the rack relative to a pinion has a roller for guiding the rack bar by contact therewith. A plate of synthetic resin is interposed between each end face of the roller and the roller mount portion of the support yoke opposed thereto.

Abstract: A thrust bearing is provided with resilient mounting tangs in the form of one or more axially and radially projecting leaf springs. Each leaf spring is shaped with a wedge-like camming surface which facilitates the insertion and centering of each tang within a mounting recess formed in a bearing housing. As the tang is wedged and cammed within its mounting recess, the leaf spring is resiliently deflected and compressed therein to securely anchor the bearing in place.

Abstract: Balancing devices or systems have been used to compensate for the periodic unbalanced forces generated by the reciprocating movement of the piston and connecting rod assemblies of an engine. These devices in the past have reduced serviceability, increased engine component complexity, increased cost and have reduced reliability. The subject device provides a simple, inexpensive, more serviceable and reliable balancing system. A plurality of individual bearing supports are removably attached to the engine, a pair of balancing shafts are rotatably positioned in the supports and a thrust pin is isolatingly mounted between the support and the shaft. A pair of o-rings are mounted about each end of the pin and is positioned in the support at least partially isolating the pin from the engine. The center of the pin has a plurality of seating surfaces thereon which have an oil film between the seating surfaces and a groove in the shaft.

Abstract: A thrust bearing assembly for a hinge structure having two geared hinge members and a clamp member. The geared hinge members are maintained in rotatable, intermeshing relation along their adjacent longitudinally extending edges by the clamp members to permit smooth and uniform movement of the hinge structure. The thrust bearing assembly of the present invention includes a pair of non-metallic interconnected inserts arranged in side-by-side order to extend laterally across and inhibit relative longitudinal movements between the hinge members. The interconnected inserts are configured to facilitate their insertion in and removal from the hinge structure while maintaining the hinge members in mesh.

Abstract: Two propeller shafts are disposed coaxially one within another. A collar of the inner propeller shaft grips into the hollow outer propeller and supports the inner shaft axially over axial friction bearing elements. The axial friction bearing elements are surrounded by a shaft connecting piece, which is divided in the axial direction and at least one half of which can be removed radially, in order to create access to the axial friction bearing elements. By way of the axial friction bearing elements, axial forces of the inner propeller shaft reach the hollow outer propeller shaft and, from the latter, by way of further axial friction bearing elements, further reach a bearing housing, which is preferably also divided in the longitudinal direction.

Abstract: A thrust bearing for use with an automobile thrust-strut type suspension comprises a lower casing made of resin, an upper casing made of resin, and a bearing piece made of resin. The bearing piece is disposed rotatably within the upper and lower casings upon snap-fitting a hook portion of an annular suspended portion of the upper casing with an engaging portion of an annular protruded portion of the lower casing. The thrust bearing is so adapted that two annular inner labyrinth portions and two annular outer labyrinth portions are respectively formed at inner and outer peripheral portions of the thrust bearing to thereby prevent sufficiently dust from intruding into a sliding surface of the bearing piece.

Abstract: A thrust bearing made of synthetic resin assembled into a strut-thrust type suspension for use in four wheel cars, comprising a casing made of synthetic resin and a bearing body made of synthetic resin, the bearing body being fitted rotatably to the casing by snap-fitting a hook portion of a suspended portion with an engaging portion of a protruded portion, the suspended portion being formed integrally with an outer circumferential edge of the casing, the protruded portion being formed integrally with an outer circumferential edge of the bearing body.

Abstract: A thrust bearing made of synthetic resin assembled into a strut-thrust type suspension for use in four wheel cars, comprising a casing made of synthetic resin and a bearing body made of synthetic resin, the bearing body being fitted rotatably to the casing by snap-fitting a hook portion of a suspended portion with an engaging portion of a protruded portion, the suspended portion being formed integrally with an outer circumferential edge of the casing, the protruded portion being formed integrally with an outer circumferential edge of the bearing body.

Abstract: A friction bearing suitable for use with well drilling tools which includes a trace ring with a sliding surface formed of a plurality of sintered molded bodies countersunk to be flushed with the surface of the ring, and arranged side by side in a mosaic pattern to define a ring channel with an essentially close surface. The trace ring may have molded segments of different types of molded bodies, and of different shapes.

Abstract: A water pump used in a cooling system for an internal combustion engine includes a pump shaft fixedly connected to an impeller means and detachably connected to a driven gear. The driven gear is in meshing engagement with a drive gear which is detachably mounted on a cam shaft rotated by the engine. The two shafts are not axially aligned, but are arranged in parallel relationship with each other. Thus, the optimum rotational ratio between the shafts may be obtained by adjusting the radii of the gears.