Elastomer Or Plastic Patents (Class 384/536)
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Patent number: 4715780Abstract: A water pump comprises a rotary shaft having a water circulating impeller fixed to one end thereof and a rotative driving pulley fixed to the other end thereof, a housing made of resin and having an outer shell portion covering the portion of the rotary shaft between the opposite ends thereof and a mounting portion extending radially outwardly from the outer periphery of the outer shell portion which is proximate to the impeller, a plurality of rolling members disposed between the rotary shaft and the housing to enable rotation of the rotary shaft, an outer race disposed between the housing and the rolling members and providing an outer track surface for the rolling members, and seals for preventing entry of foreign substances from the axial opposite ends of the outer race.Type: GrantFiled: August 30, 1985Date of Patent: December 29, 1987Assignee: Nippon Seiko Kabushiki KaishaInventor: Yoshiro Kan
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Patent number: 4708499Abstract: A pivot mounting assembly for movably mounting a steering column of a vehicle in a housing or the like comprising a rolling bearing including an outer ring and a plurality of rolling elements disposed between the steering column and a housing for pivotally mounting the outer ring in the housing including an intermediate mounting member disposed between the outer ring and housing and adopted for positive form locking connection with the housing in an axial direction and including a pair of cooperating retaining ring members having cooperable axially oriented projectors and recesses which are interengageable in a friction locking manner.Type: GrantFiled: August 11, 1986Date of Patent: November 24, 1987Assignee: SKF Gleitlager GmbHInventors: Norbert Loser, Leopold Tilgner, Jurgen Scholer
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Patent number: 4699528Abstract: A rotary assembly includes a shaft, a housing, and a bearing interposed between shaft and housing to provide radial support while also permitting relative rotation.The invention permits optimum operation of the bearing, by permitting the bearing to be self-positioned even though slightly out of alignment with either the shaft or the housing, or both.This is accomplished by providing a radial space between the bearing and the shaft or housing; placing a generally ring-shaped compensating member in circumferential engagement with the associated cylindrical surface of the shaft or housing; providing a longitudinal taper on the outer surface of the associated end of the bearing; and then placing the tapered surface of the bearing in overlapping engagement with the compensating member and resiliently urging the bearing and the compensating member axially together so as to provide a firm support both radially and axially for the bearing.Type: GrantFiled: April 21, 1986Date of Patent: October 13, 1987Assignee: Zephyr Manufacturing CompanyInventor: Alexander Gotman
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Patent number: 4696587Abstract: In a bearing including an inner race and an outer race disposed concentrically, a plurality of rolling members interposed between the two races, and two ring members of synthetic resin axially spaced on the outer peripheral surface of the outer race and wherein a rotating member is inserted in the inner race and the outer race is fitted and held in a non-rotating member through the ring members, two circumferential grooves are provided at an interval in the outer peripheral surface of the outer race. Each of the circumferential grooves comprises a first portion located toward a respective axial end of the outer race and whose bottom surface comprises an arcuate surface of a single radius, and a second portion located more toward the opposite axial end than the first portion and being narrower and shallower than the first portion.Type: GrantFiled: July 3, 1986Date of Patent: September 29, 1987Assignee: Nippon Seiko Kabushiki KaishaInventors: Soji Nishida, Nobuhiko Miyake
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Patent number: 4682065Abstract: A molded plastic housing for a small electric motor having a radial end wall and an axially projecting portion for mounting the stator and journalling the motor shaft. An annular stator is mounted on and about the projecting portion and shaft bearings are mounted in axially spaced relationship in interference fit respectively at end sections of the housing portion and in direct engagement with the molded plastic. Reduced diameter and reduced thickness zones at the end sections provide for resilient and firm bearing retention and alignment. Four (4) circumaxially spaced slots at each end section with flats radially inwardly thereof provide for the reduced thickness and reduced diameter. The bearings engage the flats in an interference fit.Type: GrantFiled: November 13, 1985Date of Patent: July 21, 1987Assignee: Nidec-Torin CorporationInventors: George A. English, Charles R. Marracino
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Patent number: 4676667Abstract: A rotating shaft of a turbocharger is supported by two rolling bearings enclosed in a bearing housing. Two collar members are interposed between the housing and bearings for supporting the bearings in the housing. A U-shaped preloading member is interposed between the two collar members in such a manner that the U-shaped member forms an oil chamber therein. The U-shaped member receives a pressure of a lubricating oil supplied to the oil chamber from an engine, and expands to puch the rolling bearings through the collar members with a greater force when the engine speed is high, and therefore, the oil pressure is high.Type: GrantFiled: March 11, 1986Date of Patent: June 30, 1987Assignee: Nissan Motor Co., Ltd.Inventors: Hiroshi Komatsu, Ken Yamane
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Patent number: 4668110Abstract: According to the invention, an inexpensive antifriction bearing is located in a plastic block and the plastic block is encircled by a further plastic ring. The softening point of the plastic ring is lower by 20.degree. C. than that of the material of the bearing block and between the softening point and melting point of the ring a difference of at least 30.degree. C. exists ensuring that in case of excessive warming up of the bearing, the sliding on each other of the plastic block and of the outer plastic ring as plain bearing, puts the bearing out of action for a certain time. The contact surfaces of the bearing block and the ring are spherical, ensuring the compensation of possible eccentricity by self-aligning. The ring is fixed in the seat of a roller by flanging. The invention renders superfluous the otherwise indispensable high-precision single-purpose machine or horizontal lathe for boring the roller, and makes possible the application of the technology of mass production.Type: GrantFiled: July 25, 1984Date of Patent: May 26, 1987Assignee: Nikex Nehezipari KulkereskedelmiInventors: Csaba /E/ geto, Zolt/a/ n Szalay, B/e/ la D/o/ r/o/ mb/o/ sy, K/a/ roly Krauz
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Patent number: 4652152Abstract: A self-aligning bearing, wherein the bearing has an elastic plastic outer layer for engaging a bearing seat, so that it can be tilted. In order to ensure the alignment in a large range, elastically bendable substantially radially directed projections are formed on the plastic outer surface, and are supported on the radial surface of the bearing seat.Type: GrantFiled: February 5, 1986Date of Patent: March 24, 1987Assignee: SKF GmbHInventors: Manfred Brandenstein, Hans Meining, Karl F. Kaschube
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Patent number: 4643644Abstract: A shaft and pulley assembly for a blower having a scroll housing containing an impeller utilizes a square section shaft having a pulley retained thereon, an impeller having a hub with inner surfaces which lie in face-to-face contiguity with the shaft, a pair of adaptors having inner surfaces which also lie in face-to-face contiguity with the shaft and having curved external surfaces which support the adaptors from bearings which are themselves carried in bearing housings which are fixed with respect to the scroll housing, at least one of the adaptors having latches thereon which retain its said bearing against displacement.Type: GrantFiled: October 23, 1984Date of Patent: February 17, 1987Assignee: F.F. Seeley Nominees Pty., Ltd.Inventors: Anthony D. Colliver, Robert W. Wrightson
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Patent number: 4639150Abstract: An intermediate bearing for the propeller shaft of a motor vehicle includes a rigid casing constituted by two parts which form an annular casing having a generally U-shaped cross section, and a tensioned, resilient deformation member contained in the casing and having on its inner periphery a receiving means for a bearing for the propeller shaft and further including radially outwardly extending tension webs which lie in the radial median plane of the bearing.Type: GrantFiled: March 25, 1986Date of Patent: January 27, 1987Assignee: Ford Motor CompanyInventor: Heinz P. Habermann
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Patent number: 4611933Abstract: The disclosure concerns accurate axial and radial fastening of the bearings of, for instance, a bicycle pedal crank. An intermediate sleeve of deformable material is arranged between the outer race of the bearing on the shaft and the housing for the pedal crank. There is underdimensioning between the intermediate sleeve and the outer race, on the one hand, and the housing borehole on the other hand, and the outer race having teeth.Type: GrantFiled: April 12, 1985Date of Patent: September 16, 1986Assignee: FAG Kugelfischer Georg Schafter (KGaA)Inventors: Heinrich Hofmann, Horst Ulsenheimer
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Patent number: 4601591Abstract: A cantilevered bearing damper assembly has an elastomeric camping section which is maintained essentially entirely in a shear stress condition during lateral deflection of an annular bearing secured to the assembly.Type: GrantFiled: May 14, 1984Date of Patent: July 22, 1986Assignee: The Garrett CorporationInventor: E. Scott Wright
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Patent number: 4590657Abstract: In a rolling bearing assembly including at least two contact metal surfaces, such as a rolling bearing engaging a housing and a shaft, a homogeneous elastic layer is fixedly applied to one of said contacting surfaces, the outer surface of this layer having high density and extreme smoothness for full intimate contact with the contacting metal surface to avoid fretting corrosion between said contacting metal surfaces.Type: GrantFiled: April 12, 1984Date of Patent: May 27, 1986Assignee: SKF Industrial Trading & Development Company B.V.Inventor: Evert van Amerongen
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Patent number: 4580913Abstract: An anti-friction bearing has a covering comprising first and second caps respectively over each of its races, and the caps are snap-locked to the bearing so as to enclose the bearing within it and to protect the same. An elastic material ring surrounds the peripheries of the two caps and protrudes outwardly protecting the bearing against impact damage. The periphery of the wall of one of the caps is conically tapered and the other of the caps pushes the elastic ring toward the wider end of the tapered wall for tensioning the ring.Type: GrantFiled: May 2, 1985Date of Patent: April 8, 1986Assignee: FAG Kugelfisher Georg Schafer KGaAInventors: Peter Dreschmann, Anton Schmidt
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Patent number: 4571098Abstract: A carrier bearing assembly is provided which is used with vehicles having two separate drive shaft sections. The carrier bearing assembly supports and interconnects the two drive shaft sections. The carrier bearing assembly includes a housing comprising two separate casings which are mounted about an outer race. Ball bearings are disposed between the outer race and an inner race. A pair of sleeve members and a pair of seal members are also provided, with one sleeve member and one seal member located on each side of the ball bearings. The sleeve members, together with the drive shaft sections, are rotatable relative to the first and second casings. One of the two casings includes a port formed therein and a grease fitting is inserted into the port. A lubricant is provided through the grease fitting into the housing formed by the two casings. The lubricant acts to increase the life of the carrier bearing assembly thereby virtually eliminating replacement of the carrier bearing assembly.Type: GrantFiled: March 20, 1985Date of Patent: February 18, 1986Inventor: Everett Rudnik
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Patent number: 4561788Abstract: A clutch release bearing device including a clutch release bearing and bearing retainer comprising a cylindrical portion made of synthetic resin fitted to the fixed guide of a clutch, and a radially extending portion made of a metal extending radially outwardly from the cylindrical portion and having the inner side edge thereof embedded in the cylindrical portion and retaining the clutch release bearing for self-aligning and engageable with a clutch operating fork member.Type: GrantFiled: December 27, 1984Date of Patent: December 31, 1985Assignee: Nippon Seiko Kabushiki KaishaInventor: Kenji Tanaka
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Patent number: 4556331Abstract: In a suspension device for a rotatable spindle (1) comprising a bearing housing which encloses two closely adjacent bearings--one radial bearing (3) and one axial bearing (4)--the bearing housing is divided in two parts (7, 8) each enclosing one of the two bearings (3, 4). First spring means (13, 14) are arranged between the frame and the bearing housing part (7) for the radial bearing (3), and second spring means (16) are arranged between the frame and the bearing housing part (8) for the axial bearing (4). The bearing housing parts (7, 8) are free to perform angular movements relative to each other around axes perpendicular to the spindle (1) but engage with each other so that they are prevented from moving relative to each other in the peripheral direction of the spindle.Type: GrantFiled: April 16, 1984Date of Patent: December 3, 1985Assignee: Alfa-Laval Separation ABInventors: Jan C. Munde, Karl Laigar
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Patent number: 4548518Abstract: This invention concerns an isostatic device (10) to provide rolling and support with revolvable bodies which comprises an inner ring (12), an outer ring (11), a cage (13) and three revolvable bodies (14) fitted substantially at angles of one hundred and twenty degrees from each other, in which device (10) the revolvable bodies (14) are kept in position by the cage (13), the mean circumference of which is offset in relation to the median circumference of rolling of the revolvable bodies (14), and one ring is substantially stiff and the other ring is resilient with a suitable degree of contact with the revolvable bodies (14) so that, after being fitted, the resilient ring tends to take up a three-lobed conformation, thus providing a pre-set pre-load for the revolvable bodies (14).The invention also concerns a device which has adjustable braking means and which can be used as a rotatable ring.Type: GrantFiled: December 20, 1983Date of Patent: October 22, 1985Assignees: Officine Savio SpA, Fag Italiana SpAInventors: Stefano Ravinale, Vittorio Vernocchi
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Patent number: 4542996Abstract: A unitary center bearing assembly for rotatably mounting a vehicle drive shaft which includes a resilient support having an aperture therethrough, an anti-friction bearing seated in the aperture and a generally U-shaped mounting bracket having a plurality of tabs and at least one detent extending inward and securing the resilient support against movement relative to the bracket.Type: GrantFiled: December 24, 1984Date of Patent: September 24, 1985Assignee: Rockwell International CorporationInventors: Ronald N. Brissette, Richard L. Kumbier
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Patent number: 4511191Abstract: A device for preventing creep of the outer ring of an antifriction bearing relative to the housing supporting the outer ring. The bearing outer ring has a circumferential groove formed in its outer periphery eccentrically thereof and having fitted therein a bandlike resilient ring which has a curved protruding portion larger than the depth of the groove. In the vicinity of the protruding portion, the resilient ring has its opposite end portions lapped over each other within the groove. When the outer ring acts to creep within the housing, the shallow groove portion of the groove approaches the protruding portion and lapped end portions of the ring, causing the end portions to act as a wedge between the housing and the outer ring to stop the creep.Type: GrantFiled: February 14, 1984Date of Patent: April 16, 1985Assignee: Koyo Seike Company LimitedInventor: Masayuki Kitamura
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Patent number: 4489991Abstract: A vibration damping adjustable support for machines. A base plate supports elastically a machine. A bearing element is disposed below the base plate for supporting the base plate and an adjustment device is provided for changing the supporting condition of the bearing element. A regulating provision is furnished for effecting a change in the support conditions for a shafting arrangement of an elastically supported machine by way of changing the supporting forces. Depending on the deviations from a set point value found with a surveying measurement device the supporting force of spring bodies disposed below the base plate are changed until the set point is reached again. In this manner relatively small deformations of foundations of the base plate can be achieved by way of relatively large adjustment distances at the elastic supporting element for aligning and realigning of shafting arrangements.Type: GrantFiled: August 31, 1982Date of Patent: December 25, 1984Assignee: GERB Gesellschaft fur Isolierung mbH & Co. KGInventor: Heinz Delam
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Patent number: 4489992Abstract: A self aligning bearing structure, especially adapted for electric motors, has an outer ring with a plastic jacket thereon. A housing for supporting a bearing has a cylindrical seat for receiving the outer ring. The plastic jacket has one annular central ridge of greater diameter, in the unassembled condition, than the seat, so that the annular ridge is compressed to substantially the compression limit when the outer ring is assembled in the seat. The plastic jacket may have a conical end to simplify assembly.Type: GrantFiled: October 19, 1981Date of Patent: December 25, 1984Assignee: SKF Kugellagerfabriken GmbHInventors: Manfred Brandenstein, Horst M. Ernst, Lothar Walter, Karl-Friedrich Kaschube