Outermost Element Grooved Patents (Class 384/588)
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Patent number: 11279601Abstract: A sheave assembly for use in a handling system or tensioning system, the sheave assembly having one or more sheaves arranged about a shaft and cone sub-assembly. The shaft and cone sub-assembly may include one or more pairs of bearing cones configured to interface with a plurality of bearing rollers to facilitate rotation of the one or more sheaves about the shaft and cone sub-assembly. The shaft and cone sub-assembly may be configured to be arranged in a fixed rotational position during handling or tensioning operations. The shaft and cone sub-assembly may further be configured to be rotated or repositioned about a central, longitudinal axis of the sub-assembly. The shaft and cone sub-assembly may be configured to rotate independent of the sheave(s) so as to reposition the one or more pairs of cones with respect to applied loading on the sheave assembly from the handling or tensioning operations.Type: GrantFiled: April 3, 2017Date of Patent: March 22, 2022Assignee: NATIONAL OILWELL VARCO, L.P.Inventor: Reece William Kaybidge
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Patent number: 11193530Abstract: A roller bearing for a pod joint comprising an inner race, an outer ring assembly, a race that runs along a bell section and is disposed on the outer surface of the outer ring assembly, a plurality of rolling elements, wherein the plurality of rolling elements are disposed between the inner race and the outer ring assembly and are formed as rollers, and a cage assembly, wherein the rolling elements are disposed in the cage assembly, wherein the cage assembly is formed as a central cage, wherein the rollers pass through the central cage in a middle area, and the running areas thereof project outward from both sides of the central cage.Type: GrantFiled: February 3, 2017Date of Patent: December 7, 2021Assignee: Schaeffler Technologies AG & CO. KGInventors: Xavier Mehul, Christophe Walliser, Jean-Philippe Dietrich
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Patent number: 9631712Abstract: An electric linear actuator has a housing with an electric motor, a speed reduction mechanism and a ball screw mechanism. The ball screw mechanism converts the rotational motion of the electric motor to an axial linear motion of a drive shaft. The ball screw mechanism has a nut and a screw shaft. The screw shaft is inserted into the nut, via a large number of balls. The screw shaft is axially movably supported on the housing but is non-rotatable with respect to the housing. An output gear, forming part of the speed reduction mechanism, is secured on the nut. The bearings are arranged at either side of the output gear. The bearings are mounted on the housing, via a ring-shaped washer, formed from an elastic member.Type: GrantFiled: May 15, 2014Date of Patent: April 25, 2017Assignee: NTN CorporationInventor: Yoshinori Ikeda
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Patent number: 9353838Abstract: An electric linear actuator has a housing, an electric motor, a speed reduction mechanism, and a ball screw mechanism. The ball screw mechanism has a nut and a screw shaft. The nut is rotationally supported by bearings on the housing but is axially immovable. The screw shaft is rotationally supported on the nut and is axially movable with respect to the housing. The housing has a first housing and a second housing abutting against one another. Bores contain the screw shaft in the housing. The speed reduction mechanism has an input gear, an intermediate gear, and an output gear, secured on the nut, mating with the intermediate gear. The intermediate gear is rotationally supported, via a bearing, on a shaft. The shaft is supported at its opposite ends on the first and second housings.Type: GrantFiled: May 9, 2014Date of Patent: May 31, 2016Assignee: NTN CorporationInventor: Yoshinori Ikeda
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Patent number: 9322457Abstract: A turning device includes: a pinion gear having spur teeth that mesh with a wheel gear provided on a rotary shaft; an arm member that rotatably supports the pinion gear; an ON/OFF mechanism that operates the arm member such that the pinion is brought close to the wheel gear, in a meshed position, with respect to the wheel gear and such that the pinion is separated radially outward from the wheel gear, in a retracted position; and a supporting device that supports the pinion in an axial direction of the pinion.Type: GrantFiled: February 22, 2012Date of Patent: April 26, 2016Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATIONInventors: Yuichi Sasaki, Kyoichi Ikeno, Ken Nishitani
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Patent number: 5904038Abstract: Supporting disks are provided for a supporting disk bearing for open-end spinning rotors, which supporting disks have an essentially cylindrical running surface defined by encircling border edges. The running surface is provided with a helically shaped groove comprising at least two turns. The starting point of the groove as well as the end thereof have an eased runout which is at a distance to the respective border edge.Type: GrantFiled: March 13, 1998Date of Patent: May 18, 1999Assignee: Novibra GmbHInventor: Gerd Stahlecker
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Patent number: 5551226Abstract: A disk for use in a bearing assembly of an open end spinning machine having four disks arranged in two pairs and which operate at up to 15,000 RPM's while the rotor shaft turns at up to 125,000 RPM's. The disk pairs are arranged to form a wedge shaped gap supporting the shaft of a spinning rotor for rotation. Each disk comprises a metallic hub which mounts a synthetic ring. The synthetic ring has a spinning rotor contact surface comprising a shoulder arranged atop a helically disposed rib which extends around and across the contact surface. The shoulder imparts an axial thrust against the spinning rotor during operation of the spinning machine.Type: GrantFiled: September 1, 1995Date of Patent: September 3, 1996Assignees: Richard M. Keir, William L. Brigham, Jr.Inventors: Richard M. Keir, William L. Brigham, Jr., Barry S. Ballew, Cam W. Abshire
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Patent number: 5156378Abstract: A bearing block having an inner and outer race is provided with an enlarged axial opening through the unloaded portion of the inner race and is selectively reinforced in the region carrying the load, in order to provide an improved strength to weight ratio.Type: GrantFiled: April 25, 1991Date of Patent: October 20, 1992Assignee: Harken, Inc.Inventors: Peter O. Harken, Dane M. Blackburn