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    Rolling device
    2.
    发明专利
    Rolling device 未知

    公开(公告)号：GB2353537B

    公开(公告)日：2003-04-02

    申请号：GB0025600

    申请日：2000-02-10

    Applicant: NSK LTD

    Inventor： YAMAMOTO TOYOHISA ,  ISO KENICHI ,  ODA ATSUSHI

    IPC: C10M107/38 ,  F16C33/66 ,  C10M169/04

    Abstract: The rolling device of the present invention utilizes any one of 1) a lubricant containing a liquid fluorinated polymer oil having a kinetic viscosity at -20° C. falling within a range of between 100 mm2/sec and 3,000 mm2/sec and a vapor pressure at 50° C. not higher than 2x10-4 Torr, 2) a lubricant containing a liquid fluorinated polymer oil having a kinetic viscosity at 40° C. falling within a range of between 10 mm2/sec and 400 mm2/sec and having a kinetic viscosity at 100° C. falling within a range of between 3 mm2/sec and 80 mm2/sec, and 3) a lubricant constituted by a grease composition containing a mixture of a liquid fluorinated polymer oil having a kinetic viscosity at 40° C. falling within a range of between 10 mm2/sec and 400 mm2/sec as a base oil and a thickening agent.

    Rolling bearing arrangement
    4.
    发明专利
    Rolling bearing arrangement 未知

    公开(公告)号：GB2389632A

    公开(公告)日：2003-12-17

    申请号：GB0322189

    申请日：2000-05-09

    Applicant: NSK LTD

    Inventor： OKITA SHIGERU ,  SEKINO KAZUO ,  YAMAMOTO TOYOHISA ,  TANAKA SUSUMU ,  ITO HIROYUKI ,  UCHIDA AKIRA ,  FUJIU KAZUHIRO

    IPC: F04D29/06 ,  F16C19/16 ,  F16C19/18 ,  F16C19/54 ,  F16C33/38 ,  F16C33/41 ,  F16C33/44 ,  F16C33/66 ,  F16C19/34

    Abstract: A rolling bearing comprising outer and inner rings 1, 3 having outer and inner ring raceways 4, 2 respectively, rolling elements 5, 19 which are disposed so as to rotate between the aforementioned raceways, an cage 6 for distributing the rolling elements evenly in their rotational direction between the raceways having cage pockets 8, 21 with openings 23 between 80-93 % (A) of the diameter C of the rolling element 5, 19 and wherein the rolling bearing arrangement is used with a fluoro-containing polymer lubricant 14 or in an atmosphere comprising a gas containing fluoride. The specific arrangement also comprises a weld line 26, a clamping area D and clamping fingers 24. The arrangement aims to reduce the wear on components, such as vacuum pumps, which operate in severe conditions and also improves the lubrication performance.

    Rolling bearing
    6.
    发明专利
    Rolling bearing 未知

    公开(公告)号：GB2354559A

    公开(公告)日：2001-03-28

    申请号：GB0100201

    申请日：2000-05-09

    Applicant: NSK LTD

    Inventor： OKITA SHIGERU ,  KAZUO SEKINO ,  YAMAMOTO TOYOHISA ,  TANAKA SUSUMU ,  ITO HIROYUKI ,  UCHIDA AKIRA ,  FUJIU KAZUHIRO

    IPC: F04D29/06 ,  F16C19/08 ,  F16C19/16 ,  F16C19/18 ,  F16C33/30 ,  F16C33/38 ,  F16C33/41 ,  F16C33/44 ,  F16C33/66 ,  F16C19/34 ,  F16C33/32 ,  F16C33/58

    Abstract: A rolling bearing having a long life and used for, e.g. a vacuum pump under severe conditions of low-pressure atmosphere, high-speed rotation, high temperature, fluorine lubricant lubrication. A full complement angular ball bearing (with no retainer) the contact angle of which is 10 to 45{, preferably 15 to 30{ is used. Therefore, the number of balls is large, the contact pressure between the inner and outer rings and the balls is low, and the degree of spin slip due to the fluctuating load is reduced, thereby decreasing the wear. The surface roughensses of the inner and outer rings are restricted, the ratios of the roughensses to the rolling elements are restricted, the content of Cr in the alloy steel of the rolling elements is restricted, the rolling elements are made of an oxide ceramic or a dense nitride layer is formed on the surface of the rolling elements, any foreign matters the average diameter of which exceeds 3 žm are prevented from being present on the raceway surfaces of the outer and inner rings, and a coating harder than the raceway surfaces of the outer and inner rings is provided on the surfaces of the rolling elements. As a result, the life of the rolling bearing is prolonged.

    Rollenvorrichtung
    7.
    发明专利
    Rollenvorrichtung 未知

    公开(公告)号：DE10066411B3

    公开(公告)日：2013-12-05

    申请号：DE10066411

    申请日：2000-02-10

    Applicant: NSK LTD

    Inventor： YAMAMOTO TOYOHISA ,  ISO KENICHI ,  ODA ATSUSHI

    IPC: C10M169/04 ,  C10M107/38 ,  C10M113/02 ,  C10M115/02 ,  C10M171/02 ,  F16C33/66

    Abstract: Rollenvorrichtung, die folgendes aufweist: – ein bewegliches Teil, das eine Drehbewegung oder eine Linearbewegung ausführen kann; – ein Trägerteil, das das bewegliche Element abstützt; – einen Rollkörper, der zwischen dem beweglichen Teil und dem Trägerteil angeordnet ist und entsprechend der Bewegung des beweglichen Teils abrollt; und – ein Schmiermittel, das zwischen dem beweglichen Teil und dem Trägerteil angeordnet ist, an dem der Rollkörper abrollt, wobei das Schmiermittel als ein Grundöl eines von den folgenden enthält: (1) ein flüssiges fluoriertes Polymeröl, das eine kinetische Viskosität bei –20°C hat, die in einen Bereich zwischen 100 mm2/s und 3000 mm2/s fällt, und einen Dampfdruck bei 50°C von 0,02666 Pa (2 × 10–4 Torr) oder weniger hat; und (2) ein flüssiges fluoriertes Polymeröl, das eine kinetische Viskosität bei 40°C von 10 mm2/s bis 400 mm2/s und eine kinetische Viskosität bei 100°C von 3 mm2/s bis 80 mm2/s hat, und wobei das Schmiermittel 20 Gew.-% bis 35 Gew.-% eines Verdickungsmittels enthält, das aus wenigstens einem Material besteht, das aus der Gruppe ausgewählt ist, die aus Diamantfeinteilchen mit einem mittleren Teilchendurchmesser von nicht mehr als 0,1 μm und Fulleren bestehend aus 60 Kohlenstoffatomen besteht.

    Lubricant composition for a rolling apparatus
    9.
    发明专利
    Lubricant composition for a rolling apparatus 未知

    公开(公告)号：GB2329905B

    公开(公告)日：1999-12-15

    申请号：GB9818918

    申请日：1998-08-28

    Applicant: NSK LTD

    Inventor： YAMAMOTO TOYOHISA ,  YAMAMOTO ATSUHIRO ,  YOKOUCHI ATSUSHI

    IPC: C10M169/02 ,  C10M123/04 ,  C10M113/02 ,  C10M113/10 ,  C10M113/12 ,  C10M119/12 ,  C10M119/22

    Abstract: The present invention provides a rolling apparatus comprising a movable member which can undergo rotary or linear motion, a support member which carries the movable member, rolling elements which are interposed between the movable member and the support member and which roll with the movement of the movable member, and a lubricant composition which is disposed between the movable member on which the rolling elements roll and the support member, wherein the lubricant composition is a mixture of (1) a thickening agent which is at least one selected from the group consisting of a solid fluoropolymer, a lamellar mineral powder, an ultrafinely particulate organic material, an organic solid lubricant and an ultrafinely particulate inorganic material, and (2) a base oil comprising a liquid fluorinated polymer oil.

    10.
    发明专利
    未知

    公开(公告)号：DE10080471T1

    公开(公告)日：2001-04-26

    申请号：DE10080471

    申请日：2000-02-10

    Applicant: NSK LTD

    Inventor： YAMAMOTO TOYOHISA ,  ISO KENICHI ,  ODA ATSUSHI

    IPC: C10M107/38 ,  F16C33/66 ,  C10M169/04 ,  C10N20/00 ,  C10N20/02 ,  C10N40/02 ,  C10N50/10

    Abstract: The rolling device of the present invention utilizes any one of 1) a lubricant containing a liquid fluorinated polymer oil having a kinetic viscosity at -20° C. falling within a range of between 100 mm2/sec and 3,000 mm2/sec and a vapor pressure at 50° C. not higher than 2x10-4 Torr, 2) a lubricant containing a liquid fluorinated polymer oil having a kinetic viscosity at 40° C. falling within a range of between 10 mm2/sec and 400 mm2/sec and having a kinetic viscosity at 100° C. falling within a range of between 3 mm2/sec and 80 mm2/sec, and 3) a lubricant constituted by a grease composition containing a mixture of a liquid fluorinated polymer oil having a kinetic viscosity at 40° C. falling within a range of between 10 mm2/sec and 400 mm2/sec as a base oil and a thickening agent.

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