Global Patent Index - EP 2503168 A9

EP 2503168 A9 20121121 - ROTATION SUPPORT DEVICE FOR PINION SHAFT

Title (en)

ROTATION SUPPORT DEVICE FOR PINION SHAFT

Title (de)

DREHUNTERSTÜTZUNGSVORRICHTUNG FÜR EINE RITZELWELLE

Title (fr)

DISPOSITIF DE SUPPORT DE ROTATION POUR ARBRE-PIGNON

Publication

EP 2503168 A9 20121121 (EN)

Application

EP 10831661 A 20101119

Priority

  • JP 2009263553 A 20091119
  • JP 2010253709 A 20101112
  • JP 2010070721 W 20101119

Abstract (en)

[origin: EP2503168A1] Construction of a rotation support device for a pinion shaft is achieved that, together with being able to sufficiently maintain axial rigidity of a rolling bearing on the side opposite from the pinion gear side, it is able to sufficiently reduce the dynamic torque during operation and the starting torque at the start of operation. Together with using a single-row angular contact ball bearing 14a as the rolling bearing on the side opposite from the pinion gear side, the ratio of the radius of curvature Ro of the outer raceway 22a and the diameter Bd of the balls 25a (Ro/Bd) is regulated within the range 0.52 < Ro/Bd ‰¤ 0.56, and the contact angle ± is regulated within the range of 35° to 40°.

IPC 8 full level

F16C 33/58 (2006.01); F16C 19/16 (2006.01); F16C 19/18 (2006.01); F16H 48/06 (2006.01)

CPC (source: EP)

F16C 19/163 (2013.01); F16C 19/182 (2013.01); F16C 19/505 (2013.01); F16C 19/548 (2013.01); F16C 19/56 (2013.01); F16C 41/02 (2013.01); F16C 2240/34 (2013.01); F16C 2240/46 (2013.01); F16C 2240/70 (2013.01); F16C 2240/76 (2013.01); F16C 2361/61 (2013.01); F16H 1/145 (2013.01); F16H 2048/423 (2013.01)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 2503168 A1 20120926; EP 2503168 A4 20170329; EP 2503168 A9 20121121; EP 2503168 B1 20180704; CN 102171469 A 20110831; CN 102171469 B 20140409; EP 3372852 A1 20180912; EP 3372852 B1 20190821; JP 5375969 B2 20131225; JP WO2011062269 A1 20130411; WO 2011062269 A1 20110526

DOCDB simple family (application)

EP 10831661 A 20101119; CN 201080002231 A 20101119; EP 18168830 A 20101119; JP 2010070721 W 20101119; JP 2011541966 A 20101119