Lubricating Patents (Class 384/13)
  • Publication number: 20150093053
    Abstract: An end cap module of a linear guideway for being installed on a sliding block, comprises: a cap having an oil-input hole and a resilient dustproof member installed on the cap. The dustproof member has an oil-guiding passage concavely formed on a surface thereof and communicated with the oil-input hole. When the end cap module is installed on the sliding block, the dustproof member is clipped between the cap and the sliding block. Thus, the instant disclosure provides the end cap module for reducing the design difficulty and producing difficulty of the cap. Moreover, the instant disclosure also provides a linear guideway.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 2, 2015
    Applicant: OME TECHNOLOGY CO., LTD.
    Inventor: Wen-Pin LIAO
  • Publication number: 20150086140
    Abstract: A linear motion guide unit makes application of lubricant around rolling elements at the turnaround passage to accomplish securely the maintenance-free lubrication over a prolonged period of time. A lubricant reservoir plate of porous compact is composed of a lubricant reservoir major body impregnated with lubricant and an applicator nose which is different in the molded density from the lubricant reservoir major body. The lubricant reservoir plate impregnated with lubricant is composed of the lubricant reservoir major body installed in a recess made in the end cap and the applicator nose extends through a slot of the turnaround passage to expose itself to the turnaround passage to make application of lubricant around the rolling elements.
    Type: Application
    Filed: September 8, 2014
    Publication date: March 26, 2015
    Inventors: Hideki KUWABARA, Go KAMON
  • Publication number: 20150078687
    Abstract: A grease composition which is excellent in seizure resistance can be provided without deteriorating resistance to stirring in the rolling device, and a rolling device in which the grease composition intervenes to a predetermined portion can be also provided by use of a grease composition comprising a base oil and a thickener, the thickener being a diurea compound obtained by allowing an amine mixture comprising alkylphenylamine, an alkyl group of which has 8 to 16 carbon atoms, and cyclohexylamine, to react with a diisocyanate compound, the amount of cyclohexylamine in the amine mixture being 80% by mole or more and less than 91% by mole, and a worked penetration being 300 to 330.
    Type: Application
    Filed: March 22, 2013
    Publication date: March 19, 2015
    Inventors: Koji Yoshizaki, Kensuke Suzuki, Hiroki Iwamatsu, Masashi Mitsuoka
  • Publication number: 20150071576
    Abstract: A lubricating member is composed of a lubricant reservoir plate of a porous compact and a lubricant-containing member of fibrous material. The lubricating member is packed in an empty space in the end cap to make sure of maintenance-free operation for lubrication over a prolonged period of time. The lubricant reservoir plate is stowed in a recess formed on an outward end surface of the end cap major body and the lubricant-containing member is placed in the space lying deeper than the recess. A packing plate is placed between the lubricant reservoir plate and the lubricant-containing member with making close engagement with an edge defining the recess on the end cap to cover entirely a whole area of the lubricant reservoir plate to seal the lubricant impregnated in the lubricant reservoir plate inside the end cap.
    Type: Application
    Filed: August 28, 2014
    Publication date: March 12, 2015
    Inventor: Kunihiko KITO
  • Publication number: 20150023618
    Abstract: A trunk portion (13) of each end face of a slider body of a linear guide apparatus is covered with trunk parts (212A, 212B) of retainers (2A, 2B) in the whole width direction. End faces of both of the trunk parts (212A, 212B) are provided with a projection portion (212c) and a recess portion (212d), respectively. The end faces of both of the trunk parts (212A, 212B) are brought into contact with each other in a width direction of the projection portion (212c) and the recess portion (212d), that is a thickness direction of the trunk portion (13) of the slider body, and has a gap in a length direction (i.e., width direction of the slider). End faces of adjacent trunk parts (212A, 212B) oppose each other at a position not overlapping an oil supply opening (70). Oil grooves (23) conforming to oil grooves (76) formed on the end cap (7) are provided on end cap side faces of plate-shaped portions (21A, 21B) integrally formed with the retainers (2A, 2B).
    Type: Application
    Filed: August 10, 2012
    Publication date: January 22, 2015
    Applicant: NSK Ltd.
    Inventor: Yoshinori Mizumura
  • Patent number: 8910917
    Abstract: A motor support has a slidable carriage that includes a pair of elongated tubes slidably encompassing parallel elongated fixed cylindrical rails on a stationary base bed with bearing sleeves press fitted in the end portions of the glider tubes. The bearing sleeves support the guide tubes on the rails and transfer the motor load on the glider tubes to the rails with a reservoir of a viscous lubricant within the center portions of the glider tubes. A spring commands the strength of the movement of the slidable carriage and is sealed in a spring housing using one or more gusset plates.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: December 16, 2014
    Assignee: The Overly Hautz Motor Base Company
    Inventor: Edward John Bees
  • Patent number: 8901049
    Abstract: The purpose of the present invention is to provide: a sliding member having a lubricating film formed on the sliding surface thereof, and capable of exhibiting friction-reducing performance; and a friction reduction method for the same. To that end, the present invention entails coating the sliding surface with a titanium nitride-based material (for example, titanium carbon nitride, titanium nitride, or titanium aluminum nitride), adding a molybdenum dithiocarbamate with molybdenum in the amount of 600-1000 ppm to diesel engine oil, setting the arithmetic mean roughness of the sliding member to 2-10 nm, and upon converting the Sommerfeld number viscosity to Pa·s, the speed to s?1, and the load to mean Hertzian stress (Pa), then the lubrication conditions for use are within the range of 2.12365×10?19 to 5.94509×10?19.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: December 2, 2014
    Assignees: UD Trucks Corporation, Adeka Corporation
    Inventors: Keisuke Yari, Sachiyo Ono, Masaru Iijima, Noriyoshi Tanaka, Kenji Yamamoto, Akihiro Kotaka
  • Publication number: 20140348447
    Abstract: The present invention relates to sliding supports and particularly sliding supports having two elongate members of channel section and a locating assembly positioned therebetween. The locating assembly includes a plurality of bearing balls and a plurality of contact elements, and is capable of functioning without the use of grease or additional lubrication. The sliding support is particularly suitable for use in harsh environments.
    Type: Application
    Filed: August 22, 2011
    Publication date: November 27, 2014
    Applicant: Accuride International Limited
    Inventors: Samuel Foster, Peter William Bayles
  • Patent number: 8888367
    Abstract: Lubrication for rolling elements is carried out within the turnaround passages. For resupply of lubricant, the end seals and end caps have lubricating holes lying in alignment with each other to allow any lubricant injection needle piercing through there. A porous compact impregnated with lubricant fits in a concavity in the end cap. The concavity has an opening to communicate the concavity with the turnaround passage. The porous compact is composed of reservoirs, conjunctive parts, and applicator noses extending through openings to expose their tips into the turnaround passages. The lubricating hole in the end cap has a slit through which the porous compact is exposed to the lubricating hole to allow the lubricant flowing into the porous compact.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: November 18, 2014
    Assignee: Nippon Thompson Co., Ltd.
    Inventor: Yoshihiro Yoshida
  • Patent number: 8883696
    Abstract: The purpose of the present invention is to provide: a sliding mechanism having a lubricating film formed on the sliding surface thereof, and capable of exhibiting friction-reducing performance; and a friction reduction method for the same. To that end, the present invention entails coating the sliding surface with chromium nitride, adding a molybdenum dithiocarbamate with molybdenum in the amount of 600-1000 ppm to diesel engine oil, setting the arithmetic mean roughness of the sliding member to 2-60 nm, and upon converting the Sommerfeld number viscosity to Pa·s, the speed to s?1, and the load to mean Hertzian stress (Pa), then the lubrication conditions for use are within the range of 2.12365×10?20 to 5.94509×10?19.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: November 11, 2014
    Assignees: UD Trucks Corporation, Adeka Corporation
    Inventors: Keisuke Yari, Sachiyo Ono, Masaru Iijima, Noriyoshi Tanaka, Kenji Yamamoto, Akihiro Kotaka
  • Publication number: 20140321776
    Abstract: There are provided a self-lubricating composite material capable of obtaining a necessary strength at a mixing ratio of a solid lubricant such as molybdenum disulfide (MoS2) of 60 mass % or greater; and a rolling bearing, a linear motion device, a ball screw device, a linear motion guide device, and a transport device using the same. To that end, a self-lubricating composite material which is material used in a solid-lubricant spacer (6) of a rolling bearing (1) contains 60 mass % to 80 mass % of molybdenum disulfide (MoS2) and a balance containing iron (Fe).
    Type: Application
    Filed: January 18, 2013
    Publication date: October 30, 2014
    Inventors: Masachi Hosoya, Shin Niizeki, Tsuyoshi Nakai
  • Patent number: 8858080
    Abstract: A porous compact impregnated with lubricant fits into an end cap in a fashion exposed in part to a turnaround passage to apply the lubricant around balls while the balls roll through the turnaround passage. The porous compact is placed in a concavity in an end cap major part and a slot rounded at opposite ends thereof is formed in an outside curved portion of the turnaround passage to communicate the concavity with the turnaround passage. An applicator nose of the porous compact is exposed to the turnaround passage through the slot. The balls while being guided along edges of the slot come into rolling-contact with the exposed surface of the porous compact to be coated with the lubricant.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: October 14, 2014
    Assignee: Nippon Thompson Co., Ltd.
    Inventor: Shunsuke Kikuchi
  • Publication number: 20140224030
    Abstract: Two detectors mounted on footprints (12) and (13) of a plate (5) can be permuted and placed in turn in front of a measuring location set in a plate (1) connected to the plate (5). Concentric sealing joints (24, 25) bound with the plates (1, 5) a closed cavity wherein a vacuum should be created to perform measurements. The joints enable the plate to be mutually moved without sealing loss. The invention is however applicable to any device implying a relative displacement of two parts in front of each other, a stronger pressure existing outside of the parts than between them, which tends to collapse them against each other.
    Type: Application
    Filed: September 7, 2012
    Publication date: August 14, 2014
    Applicant: Commissariat à I'énergie atomique et aux énergies alternatives
    Inventors: Sébastien Hubert, Philippe Alonso
  • Patent number: 8801288
    Abstract: A linear motion guide unit is provided which is downsized in size, maintenance-free for lubrication, and makes it possible to assemble easily and quickly the slider with accuracy. The end cap has outward end surfaces each of which is concaved to provide a first recess to fit over a lubricant applicator of porous compact to apply the rollers while running through the turnaround passages, and a second recess to fit over a retainer plate. The retainer plate is surrounded with a peripheral edge of the end cap and held in place with a snap-fit engagement with the end cap to squeeze the lubricant applicator inside the first recess in the end cap.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: August 12, 2014
    Assignee: Nippon Thompson Co., Ltd.
    Inventor: Yoshihiro Yoshida
  • Patent number: 8801289
    Abstract: A circular sleeve is disclosed which fits into a lengthwise bore in a slider to provide a return passage to make sure of smooth rolling in a slider downsized or compact in length. The sleeve is inserted with leaving circular clearances inside the lengthwise bore in the slider. The sleeve has a bridged beam portion and cantilevered beam portions all of which may undergo elastic deformation under urging or impact force caused by rollers while rolling through the return passage. The bridged beam portion is flanked by support beam portions forming the outside circular surface of the sleeve and the cantilevered beam portions are fastened at their inward ends to a middle support beam portion and freed at their outside ends to bend or warp.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: August 12, 2014
    Assignee: Nippon Thompson Co., Ltd.
    Inventors: Hideki Kuwabara, Yoshihiro Yoshida
  • Patent number: 8771836
    Abstract: It is an object of the present invention to provide a resin composition whose flowability is secured when the resin composition is injection-molded into injection-molded articles such as a resin-made crown-shaped cage and a resin-made seal both for a rolling bearing and a resin-made sliding bearing and which is capable of enhancing the mechanical strengths and toughnesses of these injection-molded articles to such an extent that these injection-molded articles can be used as bearing members. The resin composition is formed into a molded article and used as a bearing member. The resin composition is composed of polyamide resin or polyester resin to which polycarbodiimide is added. The polyamide resin is at least one resin selected from among polyamide 66 resin and polyamide 11 resin. The polyester resin is polytrimethylene terephthalate resin. 0.5 to 6 wt % of the polycarbodiimide is contained in an entirety of the resin composition.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: July 8, 2014
    Assignee: NTN Corporation
    Inventors: Yoshihide Himeno, Masaki Egami, Eiichirou Shimazu
  • Publication number: 20140161377
    Abstract: A guide carriage can be moved on a guide rail to form a linear roller bearing. The guide carriage has four endlessly revolving rows of rollers which are guided in respective roller tracks. The guide carriage has a central main body, which has two end sides that are spaced apart from each other in the direction of movement. On the two end sides of the main body is arranged a respective end cap bearing directly thereagainst or spaced apart therefrom. The rows of rollers are deflected in the end caps. A branching lubricant line is provided between a lubricant input, which is provided on an outer side of at least one end cap, and the four rows of rollers or the four roller tracks. Two or four internal nonreturn valves having a respective closing body, the opening direction of which nonreturn valves corresponds to the conveying direction, are provided in the lubricant line in the interior of the end cap or between the end cap and the main body.
    Type: Application
    Filed: November 12, 2013
    Publication date: June 12, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Michael Dittmar, Andre Schott, Andreas Schupies
  • Patent number: 8746409
    Abstract: A linear transmission assembly having a lubricant recovery module is composed of a movable member having a chamber; a first oil wick inserted into the movable member and the chamber and having a first oil-absorbable portion and a first oil-dischargeable portion; an oil tank mounted to the movable member and having an oil room for storage of lubricating oil; a second oil wick mounted to the oil tank and having a second oil-absorbable portion and a second oil-dischargeable portion, the former of which extends into the oil room for contact with the lubricating oil and the latter of which reaches the chamber; and a third oil wick having a third oil-absorbable portion and a third oil-dischargeable portion, the former of which reaches the chamber and the latter of which does not contact the lubricating oil. Thus, the lubricating can be prevented from overspill and staining the linear transmission device.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: June 10, 2014
    Assignee: Hiwin Technologies Corp.
    Inventors: Tsung-Hsien Chiang, Fu-Chun Huang
  • Publication number: 20140147060
    Abstract: A moving apparatus includes a moving member configured to reciprocate along a first direction, a guide configured to contact a sliding portion of the moving member via a lubricant and to guide a movement of the moving member, and a structure configured to restrain the lubricant applied to the guide from being squeezed out of a sliding region of the guide, where the guide contacts the sliding portion, in a second direction orthogonal to the first direction utilizing the movement of the moving member.
    Type: Application
    Filed: November 25, 2013
    Publication date: May 29, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masaaki Matsuura, Atsushi Kohnotoh
  • Patent number: 8727622
    Abstract: To provide a sliding member which can control a relationship between dynamic friction force and static friction force, a sliding member 1 constitutes a bearing having a cylindrical shape and its internal circumferential surface is a sliding layer 2 along a shaft. The sliding member 1 is provided a surface of the sliding layer 2 with uneven surface 6. The uneven surface 6 has the line-like projections 6a, vertexes of which are arranged in gridlike fashion, in the embodiment, to prevent an oil film from being formed and to make the dynamic friction force larger and keep the rate of change in the dynamic friction force in relation to the static friction force smaller. The sliding layer is configured so that a porous layer made of alloy material is formed on a surface of a metal substrate and the resin filled into the porous layer is sintered.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: May 20, 2014
    Assignee: Senju Metal Industry Co., Ltd.
    Inventors: Ryoichi Kurata, Kenzo Tadokoro, Hideaki Tanibata
  • Publication number: 20140133787
    Abstract: A linear actuator. On a guide block that configures a guide mechanism, a pair of ball-circulating grooves is formed on the lower surface that faces a cylinder body and multiple balls are loaded in the ball-circulating grooves. Paired cover blocks are respectively mounted on the two ends of the guide block. Paired ball clips, which are formed as arms, are engaged with the cover blocks when the clips are inserted in the ball-circulating grooves and are holding the balls. Paired cover plates are respectively mounted on the end faces of the cover blocks, and arm-shaped cover clips are mounted so as to hold the cover plates. The cover plates, the cover blocks and the guide block are thereby integrally linked.
    Type: Application
    Filed: June 19, 2012
    Publication date: May 15, 2014
    Applicant: SMC KABUSHIKI KAISHA
    Inventors: Koichiro Ishibashi, Seiji Takanashi, Motohiro Sato, Toshio Sato
  • Patent number: 8721180
    Abstract: A linear motion guide device includes a slider slidably attached onto a guide rail, an end cap having an inner side attached to the slider, a ball bearing device disposed between the slider and the guide rail, the end cap includes an inlet for receiving a lubricating fluid, two chambers formed in two legs, a groove communicating with the chambers of the end cap, and a casing having a compartment formed by an outer wall and communicating with the inlet of the end cap for receiving the lubricating fluid from the inlet of the end cap, and the outer wall of the casing is aligned with and directed toward the inlet of the end cap for resisting a flowing of the lubricating fluid.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: May 13, 2014
    Assignee: Hiwin Technologies Corp.
    Inventor: Chia Yang Li
  • Publication number: 20140079345
    Abstract: A linear motion guide device includes a slider slidably attached onto a guide rail, an end cap having an inner side attached to the slider, a ball bearing device disposed between the slider and the guide rail, the end cap includes an inlet for receiving a lubricating fluid, two chambers formed in two legs, a groove communicating with the chambers of the end cap, and a casing having a compartment formed by an outer wall and communicating with the inlet of the end cap for receiving the lubricating fluid from the inlet of the end cap, and the outer wall of the casing is aligned with and directed toward the inlet of the end cap for resisting a flowing of the lubricating fluid.
    Type: Application
    Filed: September 19, 2012
    Publication date: March 20, 2014
    Inventor: Chia Yang LI
  • Publication number: 20140064641
    Abstract: To provide a sliding member which can control a relationship between dynamic friction force and static friction force. A sliding member 1 constitutes a bearing having a cylindrical shape and its internal circumferential surface is a sliding layer 2 along a shaft. The sliding member 1 is provided a surface of the sliding layer 2 with uneven surface 6. The uneven surface 6 has the line-like projections 6a, vertexes of which are arranged in gridlike fashion, in the embodiment, to prevent an oil film from being formed and to make the dynamic friction force larger and keep the rate of change in the dynamic friction force in relation to the static friction force smaller. The sliding layer is configured so that a porous layer made of alloy material is formed on a surface of a metal substrate and the resin filled into the porous layer is sintered.
    Type: Application
    Filed: April 25, 2012
    Publication date: March 6, 2014
    Applicant: SENJU METAL INDUSTRY CO., LTD.
    Inventors: Ryoichi Kurata, Kenzo Tadokoro, Hideaki Tanibata
  • Patent number: 8662752
    Abstract: A motion guide device has a moving block mounting surface 501 of an end plate 5 formed in a planar shape and a thinned-down portion 52 formed in an opposing moving block mounting surface 502. Moreover, in this motion guide device, a lubrication path 30 includes: a first lubrication path 30a formed extending in a horizontal direction from a surface of side surfaces parallel to a longer direction of a track rail 1 in the end plate 5 to a central portion of the end plate 5; a second lubrication path 30b formed in the central portion of the end plate 5; and a third lubrication path 30c connected to the second lubrication path and formed in a groove shape in the moving block mounting surface 501 of the end plate 5, and, moreover, the first lubrication path 30a is formed in a hollow shape continuous to inside a built-up portion 52a appended to the thinned-down portion 52 of the end plate 5.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: March 4, 2014
    Assignee: THK Co., Ltd.
    Inventors: Nobuyuki Maki, Fukuji Nakano, Shigemi Nakamura
  • Patent number: 8641280
    Abstract: Lubrication for rolling elements is carried out in a turnaround passage in an end cap. An applicator nose to come into touch with the rolling elements has a molding density greater than in a lubricant reservoir plate to ensure proper and steady lubrication, with accompanying sustainable maintenance-free condition for lubrication. The lubricant reservoir plate impregnated with lubricant fits into a concavity inside the end cap. The applicator nose is integral with the lubricant reservoir plate and extends through a hole cut in the end cap to reach a turnaround passage to be exposed at a leading edge thereof to the rolling element to resupply the lubricant around the rolling elements.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: February 4, 2014
    Assignee: Nippon Thompson Co., Ltd.
    Inventors: Yuichi Shibuya, Ayumi Shimaguchi
  • Patent number: 8632248
    Abstract: A seal member is a member including a lip, a seal base, a first extension section smaller in thickness than the seal base, and a first locking section, all of which are formed to be continuous in the cross-sectional direction. A retainer plate includes a base accommodating concave section for accommodating the seal base, and a first engagement concave section for accommodating the first locking section, and controls the first locking section to prevent the seal member from falling off. The first locking section is accommodated in the first engagement concave section with gaps left in the thickness and cross-sectional directions.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: January 21, 2014
    Assignee: NSK Ltd.
    Inventor: Jun Matsumoto
  • Publication number: 20130315512
    Abstract: Lubrication for rolling elements is carried out within the turnaround passages. For resupply of lubricant, the end seals and end caps have lubricating holes lying in alignment with each other to allow any lubricant injection needle piercing through there. A porous compact impregnated with lubricant fits in a concavity in the end cap. The concavity has an opening to communicate the concavity with the turnaround passage. The porous compact is composed of reservoirs, conjunctive parts, and applicator noses extending through openings to expose their tips into the turnaround passages. The lubricating hole in the end cap has a slit through which the porous compact is exposed to the lubricating hole to allow the lubricant flowing into the porous compact.
    Type: Application
    Filed: May 24, 2013
    Publication date: November 28, 2013
    Inventor: Yoshihiro YOSHIDA
  • Publication number: 20130315513
    Abstract: The present invention is applied to a tribological pair comprising two metal pieces, a first of them having a movable contact surface which provides friction in relation to a respective contact surface of a second of said metal pieces. According to the present invention, the first metal piece has its contact surface defined by a coating formed: by a first surface layer in a material harder than that of the first metal piece; and by a second surface layer, disposed onto the first surface layer and in a material defining a coating which reduces the chemical affinity in relation to the contact surface of the second metal piece of the tribological pair, in order to provide, to said tribological pair, a lower friction coefficient in relation to the tribological pair deprived of said coating.
    Type: Application
    Filed: December 2, 2011
    Publication date: November 28, 2013
    Applicant: WHIRLPOOL S.A.
    Inventors: Adilson Luiz Manke, Antonio Tadeu Cristofolini, Marcos Guilherme Schwarz
  • Patent number: 8591111
    Abstract: The need for a related-art nipple 3 is eliminated to lift restriction on the stroke of the slider S. A tubular protrusion 9 is provided on the face of a seal body H facing an end cap C, and maintains a positional relationship of being inserted into a lubricant supply hole 8 formed in the end cap when the face of the seal body faces the face of the end cap, and it has an insertion portion 9a receiving insertion of a lubricant supply nozzle 10 for a supply of lubricant, and a supply port 9b connected to a rolling-element directing passage 7 via the lubricant supply hole when it is inserted into the lubricant supply hole. A seal element is created on the insertion portion 9a and makes close contact with the lubricant supply nozzle in a process of inserting the lubricant supply nozzle into the insertion portion.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: November 26, 2013
    Assignee: Nippon Thompson Co., Ltd.
    Inventors: Junya Mori, Kenjiro Nishiwaki
  • Patent number: 8568827
    Abstract: The present disclosure is directed to a method of making a textured coating on a wear surface of a component. The method includes applying a mask on the surface and depositing a tribological coating on the surface. The method further includes removing the mask.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: October 29, 2013
    Assignee: Caterpillar Inc.
    Inventors: Shuangbio Liu, Chuong Quang Dam, Bao Feng, Dongyun Hua
  • Publication number: 20130266245
    Abstract: The purpose of the present invention is to provide: a sliding mechanism having a lubricating film formed on the sliding surface thereof, and capable of exhibiting friction-reducing performance; and a friction reduction method for the same. To that end, the present invention entails coating the sliding surface with chromium nitride, adding a molybdenum dithiocarbamate with molybdenum in the amount of 600-1000 ppm to diesel engine oil, setting the arithmetic mean roughness of the sliding member to 2-60 nm, and upon converting the Sommerfeld number viscosity to Pa·s, the speed to s?1, and the load to mean Hertzian stress (Pa), then the lubrication conditions for use are within the range of 2.12365×10?20 to 5.94509×10?19.
    Type: Application
    Filed: October 21, 2011
    Publication date: October 10, 2013
    Applicants: ADEKA CORPORATION, UD TRUCKS CORPORATION
    Inventors: Keisuke Yari, Sachiyo Ono, Masaru Iljima, Noriyoshi Tanaka, Kenji Yamamoto, Akihiro Kotaka
  • Publication number: 20130266246
    Abstract: The purpose of the present invention is to provide: a sliding member having a lubricating film formed on the sliding surface thereof, and capable of exhibiting friction-reducing performance; and a friction reduction method for the same. To that end, the present invention entails coating the sliding surface with a titanium nitride-based material (for example, titanium carbon nitride, titanium nitride, or titanium aluminum nitride), adding a molybdenum dithiocarbamate with molybdenum in the amount of 600-1000 ppm to diesel engine oil, setting the arithmetic mean roughness of the sliding member to 2-10 nm, and upon converting the Sommerfeld number viscosity to Pa·s, the speed to s?1, and the load to mean Hertzian stress (Pa), then the lubrication conditions for use are within the range of 2.12365×10?19 to 5.94509×10?19.
    Type: Application
    Filed: October 21, 2011
    Publication date: October 10, 2013
    Applicants: ADEKA CORPORATION, UD TRUCKS CORPORATION
    Inventors: Keisuke Yari, Sachiyo Ono, Masaru Iijima, Noriyoshi Tanaka, Kenji Yamamoto, Akihiro Kotaka
  • Publication number: 20130259409
    Abstract: A linear sliding block includes a base block including a body member, which defines therein multiple load-bearing tracks, and a cover member, which defines two end block portions at two ends of the body member, non-load tracks, first oil passages respectively disposed in the load-bearing tracks and second oil passages located on the end block portions in communication with the first oil passages, two circulation-guiding blocks each defining a track skeleton and a complete semicircular circulation track connected to the load-bearing tracks and the non-load tracks, and rolling balls rolling in the load-bearing tracks, non-load tracks and complete semicircular circulation tracks to lubricate the linear sliding rail that carries the linear sliding block.
    Type: Application
    Filed: March 27, 2012
    Publication date: October 3, 2013
    Inventor: Kuo-Le Tsao
  • Patent number: 8545101
    Abstract: A linear guide unit, with a guide carriage arranged on a guide rail and rolling bodies which circulate in circulating channels. Each circulating channel has a load section, a return section and two deflection sections endlessly connecting the load section to the return section. The load section is delimited by running tracks for the rolling bodies, which are formed on the guide carriage and guide rail, and with lubricant channels which are formed on the guide carriage and are connected to the circulating channels. An end is connected to a transfer point to a further lubricant channel or the circulating channel. A seal with an annularly closed sealing section is provided between the end of the lubricant channel and the transfer point, and is designed as a valve which prevents the lubricant channel from running at no-load.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: October 1, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Lothar Neufang
  • Patent number: 8534917
    Abstract: A linear bearing assembly (the assembly) of the present invention is disposed in a housing of the assembly. A first rail and a second rail are movable relative to one another. A plurality of linear bearings are connected to the housing and disposed about the first and second rails. An actuator device is connected to at least one of the first rail and the second rail to selectively move the first rail and the second rail relative to one another and the housing in at least one of simultaneous and separate modes to redistribute lubricant in the linear bearings thereby preventing deformation of at least one of the first rail and the second rail.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: September 17, 2013
    Assignee: Aktiebolaget SKF
    Inventors: Yefim Epshetsky, Mathew Peter Rosauer, Andrew Walter Helns, Lien Pham Stilfield
  • Patent number: 8506166
    Abstract: Lubrication for rolling elements are made in a turnaround passage in an end cap to ensure proper and steady lubrication by the lubrication system simple in construction, with accompanying sustainable maintenance-free condition for lubrication. The end cap has an inward end surface facing directly towards the end surface of the carriage of the slider and having a concavity which sinks below the inward end surface and has openings communicating with the turnaround passages. A porous compact impregnated with lubricant is fitted into the concavity in a fashion exposed in part to the turnaround passage through the openings so that the rolling elements rolling through the turnaround passages, as coming into rolling-contact with the parts of the porous compact exposed out of the openings, are applied with the lubricant.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: August 13, 2013
    Assignee: Nippon Thompson Co. Ltd.
    Inventor: Yoshihiro Yoshida
  • Publication number: 20130195386
    Abstract: A linear guide apparatus maintaining a high dust-proof performance over an extended period of time and includes side seal units attached to end parts of a slider in the axial direction. Each side seal unit is provided with: a first seal member, at the slider, arranged in the axial direction of the slider; a second seal member at the outside of the slider in the axial direction; and a lubricating member held between the first and second seal members. The first seal member has first lip parts sliding against the rolling element rolling grooves of the guide rail, while the second seal member has second lip parts sliding against the rolling element rolling grooves. The lubricating member has a first oil-containing member for supplying lubricant to the rolling element rolling grooves. The first and second lip parts are arranged not to come into contact with the first oil-containing member.
    Type: Application
    Filed: July 25, 2011
    Publication date: August 1, 2013
    Applicant: NSK Ltd.
    Inventors: Jun Matsumoto, Ryoichi Sato, Masaru Hattori
  • Publication number: 20130170773
    Abstract: A roller-type linear sliding block includes a base block, two circulation-guiding blocks coupled to two ends of the base block and rollers received in the base block. The base block has a sliding groove corresponding to a linear sliding rail and a pair of load-bearing tracks formed at two sides of the sliding groove. The base block is formed with a cover member. The cover member is formed with non-load tracks beside the load-bearing tracks and retainers at two sides of each load-bearing track. Each circulation-guiding block includes an inner circulation member formed with an end of the cover member, a middle spacer and an outer circulation member connected to the inner circulation member in series to form a first circulation track and a second circulation track in the circulation-guiding block. Through the first and second circulation tracks, the rollers run in the load-bearing tracks and the non-load tracks.
    Type: Application
    Filed: April 1, 2012
    Publication date: July 4, 2013
    Inventor: Kuo-Le Tsao
  • Publication number: 20130129263
    Abstract: A linear sliding block includes a base block, two circulation-guiding blocks coupled to two ends of the base block and a plurality of rolling balls accommodated in the base block. The base block includes a body member and a cover member. The bottom of the base block has a sliding groove. The cover member is integrally formed with the body member to cover a part of the body member. The cover member includes two end block portions, at least one connection portion connected between the two end block portions and two load-bearing tracks formed at two sides of the sliding groove. Each end block portion of the cover member is formed with a first oil passage facing the relative circulation-guiding block. Each load-bearing track is formed with a second oil passage. Two ends of the second oil passage communicate with the first oil passage.
    Type: Application
    Filed: March 29, 2012
    Publication date: May 23, 2013
    Inventor: Kuo-Le Tsao
  • Publication number: 20130129264
    Abstract: A lubricant oil composition containing an organic molybdenum compound which contains at least either one of a nitrogen (N) atom and an oxygen (O) atom in the molecule thereof and which may optionally contain a sulfur (S) atom, wherein a sulfur content of the organic molybdenum compound is 0.5% by mass or less based on the organic molybdenum compound. The lubricant oil composition, when used as a lubricant oil for a low-friction sliding material, exhibits an extremely low friction coefficient. A sliding mechanism having excellent low-friction property and wear resistance can be provided by combining the lubricant oil composition and a sliding member having a DLC film on its sliding face.
    Type: Application
    Filed: June 1, 2011
    Publication date: May 23, 2013
    Applicants: NIPPON ITF, INC., IDEMITSU KOSAN CO., LTD.
    Inventors: Nobuaki Watanabe, Masashi Kaji, Masanori Tsujioka, Koji Miyake
  • Publication number: 20130108194
    Abstract: A porous compact impregnated with lubricant fits into an end cap in a fashion exposed in part to a turnaround passage to apply the lubricant around balls while the balls roll through the turnaround passage, thereby realizing the maintenance-free condition for lubrication. The porous compact is placed in a concavity in an end cap major part and a slot rounded at opposite ends thereof is formed in an outside curved portion of the turnaround passage defined in the end cap major part to communicate the concavity with the turnaround passage. A leading edge of an applicator nose of the porous compact is exposed to the turnaround passage through an opening of the slot. The balls while being guided along edges of the slot come into rolling-contact with a contact area on the exposed surface of the porous compact to be applied or coated with the lubricant.
    Type: Application
    Filed: October 26, 2012
    Publication date: May 2, 2013
    Applicant: NIPPON THOMPSON CO., LTD.
    Inventor: NIPPON THOMPSON CO., LTD.
  • Publication number: 20130108193
    Abstract: A circular sleeve is disclosed which fits into a lengthwise bore in a slider to provide a return passage to make sure of smooth rolling in a slider downsized or compact in length. The sleeve is inserted with leaving circular clearances inside the lengthwise bore in the slider. The sleeve has a bridged beam portion and cantilevered beam portions all of which may undergo elastic deformation under urging or impact force caused by rollers while rolling through the return passage. The bridged beam portion is flanked by support beam portions forming the outside circular surface of the sleeve and the cantilevered beam portions are fastened at their inward ends to a middle support beam portion and freed at their outside ends to bend or warp.
    Type: Application
    Filed: October 26, 2012
    Publication date: May 2, 2013
    Applicant: Nippon Thompson Co., Ltd.
    Inventor: Nippon Thompson Co., Ltd.
  • Publication number: 20130081490
    Abstract: A linear transmission assembly having a lubricant recovery module is composed of a movable member having a chamber; a first oil wick inserted into the movable member and the chamber and having a first oil-absorbable portion and a first oil-dischargeable portion; an oil tank mounted to the movable member and having an oil room for storage of lubricating oil; a second oil wick mounted to the oil tank and having a second oil-absorbable portion and a second oil-dischargeable portion, the former of which extends into the oil room for contact with the lubricating oil and the latter of which reaches the chamber; and a third oil wick having a third oil-absorbable portion and a third oil-dischargeable portion, the former of which reaches the chamber and the latter of which does not contact the lubricating oil. Thus, the lubricating can be prevented from overspill and staining the linear transmission device.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 4, 2013
    Inventors: Tsung-Hsien Chiang, Fu-Chun Huang
  • Patent number: 8403562
    Abstract: A wiper seal is less in sliding resistance that is encountered when the seal slides over a raceway surface of a guide rail, better in wear-proof quality, rich in durability, and further easy to steadily install it to a slider. The wiper seal is installed on one end of the slider in a linear motion guide system to wipe away foreign materials adhered on the guide rail. The wiper seal is made of polyester polyurethane foam having a reticular skeleton texture of three-dimensional construction including open-cells therein, the polyester polyurethane foam being squeezed or compressed into from ¼ to 1/20 in thickness to form a compact blank of three-dimensional construction having porosity therein. The wiper seal is set to come into sliding contact with the guide rail 1 to exert a positive interference of from 0.1 mm to 0.05 mm.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: March 26, 2013
    Assignee: Nippon Thompson Co., Ltd.
    Inventors: Toshiaki Geka, Hideaki Ogura, Shigeki Kakei, Tamotsu Iwata
  • Publication number: 20130064483
    Abstract: This bush is made out of a composite material that has a modulus of elasticity of between 500 and 6000 N/mm2, said bush having at least one lip formed directly at the time of manufacture as an overrun edge of its bore to act as a leak-tight or protective barrier after mounting on the shaft by creating a tightening effect between the inside diameter of said lip or said lips, and the outside diameter of said shaft.
    Type: Application
    Filed: March 16, 2011
    Publication date: March 14, 2013
    Applicant: H.E.F.
    Inventors: Emmanuel Masse, Patrick Villemagne, Eric Chaduiron
  • Patent number: 8373011
    Abstract: The present invention provides a process for producing a saturated aliphatic hydrocarbon prepared using an ?-olefin as a raw material and represented by the general formula (1), including the steps of: (I) producing a vinylidene olefin by dimerizing the ?-olefin in the presence of a metallocene complex catalyst; (II) further dimerizing the vinylidene olefin in the presence of an acid catalyst; and (III) hydrogenating the obtained dimer. Further, there are provided a lubricant composition containing the saturated aliphatic hydrocarbon compound produced by the above process, a bearing oil consisting of the lubricant composition, and making use of the same, a bearing and gyral equipment. The saturated aliphatic hydrocarbon compounds produced by the process of the present invention have low-temperature fluidity, exhibiting low evaporativity, and excellent in thermal stability and oxidation stability.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: February 12, 2013
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Haruhito Sato, Hideto Kamimura
  • Patent number: 8366320
    Abstract: A running roller carriage of a running roller guide. The running roller carriage has a carrying body and two running roller pairs which are formed by running rollers. The two running rollers of a running roller pair are arranged one behind the other in the running directions of the running roller carriage, and have a lubricating element which is arranged between the two running rollers of a running roller pair and is in lubricating contact with the running roller pair. The lubricating element has an absorbent lubricating body which is received in a receiving groove which is formed on the carrying body The receiving groove is configured for holding the lubricating body and for transferring lubricant onto the lubricating body.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: February 5, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Christian Vogelgesang
  • Publication number: 20130028543
    Abstract: A mount bushing of a stabilizer bar for a vehicle includes an insert adapted to be directly molded to a predetermined position of the stabilizer bar, a sliding bearing comprising a pair of bearings and adapted to be coupled to an exterior circumference of the insert, a lubrication layer being formed between the insert and the sliding bearing, a rubber bushing comprising upper and lower rubber members and adapted to be coupled to the sliding bearing such that the rubber bushing encloses an exterior circumference of the sliding bearing, a bracket adapted to enclose the rubber bushing and to be fixed to a vehicle body, and first and second sealing means adapted to prevent foreign materials from flowing into the rubber bushing and to prevent grease in the rubber bushing from flowing out.
    Type: Application
    Filed: June 6, 2012
    Publication date: January 31, 2013
    Applicant: Hyundai Motor Company
    Inventors: Hee Gon Kang, Daewon Jang
  • Patent number: 8349773
    Abstract: In a slide member in which an overlay is provided on a slide receiving surface of a base member, the overlay is formed by attaching a mixed solid lubricant on the slide receiving surface of the base member. The mixed solid lubricant is made by mixing a large amount of hydrogen containing solid lubricant which contains a large amount of hydrogen, and a small amount of hydrogen containing solid lubricant which contains a smaller hydrogen amount than the large amount of hydrogen containing lubricant. Thereby, a lubricant absence region where the solid lubricant is absent in a thickness direction is formed on the slide receiving surface of the base member after sliding, and an oxidized portion where the base member is oxidized is formed in the lubricant absence region.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: January 8, 2013
    Assignee: Daido Metal Company Ltd.
    Inventors: Satoshi Takayanagi, Yukihiko Kagohara, Hideo Tsuji, Shigeya Haneda