Elastomer Or Plastic Patents (Class 384/582)
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Patent number: 5044784Abstract: A bearing isolator having an outer metal mounting ring adapted for attachment to a mounting structure, an inner metal mounting ring, adapted for registration on the outer race of a bearing for journalling a shaft, and an energy-absorbing ring of composite material radially intermediate the metal rings. A first plurality of relatively short spokes extends between the composite ring and the outer metal ring; and, a second plurality of relatively short spokes extends between the composite ring and the inner metal ring and is circumferentially staggered from the first plurality of spokes. Resilient wave-like radial deflection of the composite ring occurs between the spokes to absorb vibration and acoustic energy.Type: GrantFiled: July 31, 1990Date of Patent: September 3, 1991Assignee: Eaton CorporationInventor: Bohdan Lisowsky
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Patent number: 5044785Abstract: An integrally formed annular plastic bearing isolator for ball and tapered roller bearings journalling power transmission shafts. The isolator has a plurality of circumferentially spaced energy absorbing pads extending radially from the inner periphery thereof. The inner surface of the energy absorbing pads are at least an interference fit with the outer bearing race and have a predetermined radial spring rate for absorbing bearing movement. A plurality of circumferentially spaced stop pads alternate with the energy absorbing pads and are spaced radially from the outer race to permit limited radial compression of the energy absorbing pads. For tapered roller bearings a plurality of radially inwardly extending circumferentially spaced tabs each having axially extending pads thereon are provided for absorbing axial movement of the outer race.Type: GrantFiled: June 18, 1990Date of Patent: September 3, 1991Assignee: Eaton CorporationInventors: John J. Bair, Edward J. Bantz, Gerald D. Damon
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Patent number: 5033875Abstract: A support bearing of a rotary shaft, of the type comprising an inner ring (12) and an outer ring (10) coaxial with one another and elastic connecting strips (14a, 14b) between the two rings.The connecting strips comprise a series of first elastic strips (14a) which connect a first edge (10a) of the outer ring (10) to an axially opposite first edge (12a) of the inner ring (12), in such a way that the mid-plane of each of the first strips (14a) forms a first angle (A) with the axis (X--X) common to the two rings, and a series of second elastic strips (14b) which connect the second edge (10b) of the outer ring (10) to the second edge (12b) of the inner ring (12), in such a way that the mid-plane of each of the second strips forms a second angle (B) with the common axis (X--X).The invention is used particularly for supporting a motor-vehicle transmission shaft.Type: GrantFiled: November 2, 1989Date of Patent: July 23, 1991Assignee: Glaenzer SpicerInventor: Francois Moulinet
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Patent number: 5028152Abstract: An aluminum transmission or transaxle case contains a steel shaft which is supported in the case on two directly mounted tapered roller bearings, so that the two bearings confine the shaft both radially and axially. To compensate for the differences in expansion and contraction between the aluminum case and the steel shaft as the transmission or transaxle experiences variations in temperature, a race of at least one of the bearings is fitted with a compensating ring having a coefficient of thermal expansion greater than that of the case or shaft. As a consequence, the bearings operate at a generally uniform setting over a wide range of temperature variations.Type: GrantFiled: March 21, 1990Date of Patent: July 2, 1991Assignee: The Timken CompanyInventors: Harold E. Hill, Ronald P. Dickerhoff, Gary E. Kreider
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Patent number: 4900165Abstract: A bearing support system providing axial thrust load control of bearing supporting a rotating element, by retaining the bearings with a slotted inner ring and supporting the inner ring with a radially spaced outer ring by means of a plurality of circumferentially spaced supports which are radially stiff but axially flexible.Type: GrantFiled: August 15, 1988Date of Patent: February 13, 1990Assignee: Union Carbide CorporationInventors: Leslie C. Kun, Neno T. Nenov
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Patent number: 4820062Abstract: A bearing for the steering wheel shaft of a vehicle comprises a number of needle-like rollers, a retainer retaining the needle-like rollers, a cylindrical race member circumscribing the needle-like rollers, and an elastic cylindrical member fitted over said cylindrical race member. The cylindrical race member has a generally S-shaped split formed over the full axial length thereof and extending more or less obliquely with respect to the axis of the race.Unlike the prior art cylindrical race member having an obliquely extending straight slit, the cylindrical members, even if in a great number, are stored in a single container, they do not catch one another through the slits just like a puzzle ring.Type: GrantFiled: August 10, 1988Date of Patent: April 11, 1989Assignee: Nippon Thompson Co., Ltd.Inventor: Takashi Shirane
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Patent number: 4708498Abstract: A roller bearing assembly having an outer case (1) which contains an elastically yieldable sleeve 2 in which is enclosed a thin elastically yieldable ring 3 whose inner surface acts as a raceway for rollers or needles (6) carried by the cage (7). The elastic ring has a plurality of angularly spaced apart regions discontinuities (4a, 4b) defining pre-stressed regions adapted to ensure, by a radial deformation, a localized gripping of the rollers or needles under the action of the sleeve when the roller bearing assembly is mounted on a shaft (8). The outer case (1), the sleeve (2), the roller bearing ring (3) and the cage (7) have an openable structure which permit their spreading being apart to an open for ensuring the mounting of the roller bearing assembly by a lateral engagement of its component parts on the shaft without ends of insertion thereon from either each of the shaft.Type: GrantFiled: August 5, 1986Date of Patent: November 24, 1987Assignee: NadellaInventors: Jean-Denis Labedan, Michel Merle
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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: 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: 4595302Abstract: A bearing device for wheel axles, in particular for the axles of a railway car bogie, is such that a bearing housing encloses a wheel bearing comprising an inner ring fitted on the axle and an outer ring with rollers, balls or the like between the said rings, the inner ring being held securely in place by a nut screwed on to the said axle. Energy storage means, to accommodate forces acting on the wheel bearing in the operating position, are provided between the wheel bearing and the bearing housing.Type: GrantFiled: October 9, 1984Date of Patent: June 17, 1986Assignee: Swiss Aluminium Ltd.Inventors: Urs Attinger, Serge Lutschg
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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