(19)
(11) EP 1 816 362 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 158(3) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
17.10.2007 Bulletin 2007/42

(43) Date of publication:
08.08.2007 Bulletin 2007/32

(21) Application number: 05809505.0

(22) Date of filing: 22.11.2005
(51) International Patent Classification (IPC): 
F16C 33/48(2006.01)
F16C 23/06(2006.01)
F16C 33/66(2006.01)
 F16C 19/38(2006.01)
F16C 33/49(2006.01)
(86) International application number:
PCT/JP2005/021486
(87) International publication number:
WO 2006/057258 (01.06.2006 Gazette 2006/22)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

(30) Priority: 24.11.2004 JP 2004339287
14.03.2005 JP 2005070242
27.06.2005 JP 2005185931

(71) Applicant: NSK Ltd.
Tokyo 141-8560 (JP)

(72) Inventors:
  • MURAI, Takashi, c/o NSK Ltd.
    Fujisawa-shi, Kanagawa, 251-0021 (JP)
  • TANAKA, Toshiyuki, c/o NSK Ltd.
    Fujisawa-shi, Kanagawa, 251-0021 (JP)
  • ICHIMARU, Masatake, c/o NSK Ltd.
    Fujisawa-shi, Kanagawa, 251-0021 (JP)

(74) Representative: Shanks, Andrew et al
Marks & Clerk 19 Royal Exchange Square
GB-Glasgow G1 3AE
GB-Glasgow G1 3AE (GB)

   


(54) SELF-ALIGNING ROLLER BEARING WITH RETAINER AND METHOD OF MANUFACTURING THE RETAINER FOR THE SELF-ALIGNING ROLLER BEARING


(57) There is realized a self-aligning roller bearing with retainer that stabilizes the orientation of spherical rollers and prevents these spherical rollers from skewing, and which can be rotated at high speed, and furthermore which enables efficient lubricant feed into pockets 9.
By rotating a turning tool 14 as it revolves, the surfaces on both sides in the circumferential direction of respective column sections are processed into concave curved surfaces that oppose a rolling surface of the respective spherical rollers across a pocket clearance into which lubricant oil can be fed. The length of the column sections 8c is less than the length in the axial direction of the spherical rollers, and greater than a half of the length, and an end portion of the side surface in the circumferential direction of the respective column sections 8c projects further in the circumferential direction than an intermediate portion thereof, and the spherical rollers are embraced in the pockets 9.