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Pub. No.:    WO/2005/061913    International Application No.:    PCT/JP2004/019158
Publication Date: 07.07.2005 International Filing Date: 15.12.2004
F16C 17/10 (2006.01), F16C 33/10 (2006.01), F16C 35/02 (2006.01)
Applicants: NTN CORPORATION [JP/JP]; 3-17, Kyomachibori 1-chome, Nishi-ku Osaka-shi, Osaka 5500003 (JP) (For All Designated States Except US).
ITO, Kenji [JP/JP]; (JP) (For US Only)
Inventors: ITO, Kenji; (JP)
Agent: EHARA, Syogo; Ehara Patent Office 15-26, Edobori 1-chome Nishi-ku, Osaka-shi Osaka 5500002 (JP)
Priority Data:
2003-427433 24.12.2003 JP
(JA) 流体軸受装置
Abstract: front page image
(EN)High bonding strength is achieved when another member is bonded and fixed to a housing made of resin. A bearing sleeve (8) is fixed inside a housing (7) made of resin, and a shaft member (2) is radially supported without contact by action of a dynamic pressure of a lubricating oil produced in a radial bearing clearance between the shaft member (2) and the bearing sleeve (8). A metallic bracket (6) on which a stator coil (4) of a motor is installed is bonded and fixed to the outer periphery of the housing (7). For this purpose, the surface of that section on the outer periphery of the housing (7) on which the bracket (6) is bonded is made rough to set the surface roughness in the range of 0.5 μmRa to 2.0 μmRa.
(FR)L'invention concerne l'obtention d'une force de liaison élevée grâce à la liaison et à la fixation d'un élément de support à un logement fait de résine. Un manchon (8) de support est fixé à l'intérieur d'un logement (7) fait de résine, et une tige (2) est radialement supportée sans contact par la pression dynamique d'une huile de lubrification dans un espace de support radial entre la tige (2) et le manchon (8) de support. Un support métallique (9) sur lequel est installé une bobine (4) de stator de moteur est lié et fixé à la partie périphérique extérieure du logement (7). La surface de cette section de la partie périphérique extérieure du logement (7) sur lequel est fixé le support (6) présente ainsi une rugosité de surface variant de 0,5 $g(m)mRa à 2,0 $g(m)mRa.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)