Rolling bearing and rotation axis support structure

Rolling bearing and rotation axis support structure

  • CN 102,187,106 B
  • Filed: 09/30/2009
  • Issued: 02/03/2016
  • Est. Priority Date: 10/22/2008
  • Status: Active Grant
First Claim
Patent Images

1. a rolling bearing, possesses:

  • Multiple segmentation outer collar members is circumferentially configured and the outer ring formed;

    Multiple roller that the roller surface of described outer ring rolls;

    In order to form the shape that gap is formed as a position of the circumference of ring-shaped member to cut off, be configured to contact with described outer ring at the outside diameter of described outer ring, and to the resin back-up ring that the movement of the radial direction of described multiple segmentation outer collar members limits,Under normal temperature state, when the outside diameter of described outer ring configures described resin back-up ring, the outside dimension of described resin back-up ring is greater than the outside dimension of described outer ring,Under normal temperature state, the length of the circumference in described gap is D 1and the external diameter of described outer ring is D 2time, there is 0 <

    D 1

    0.4D 2relation, Under normal temperature state, between described outer ring and engine block, magnitude of interference is not set,The outer diameter face of described outer ring arranges the groove portion to radially inner side depression,Described groove portion extends along straight direction in the circumferential,Described resin back-up ring configures in the mode embedding described groove portion,Thus under normal temperature state, the condition of high temperature higher than described normal temperature state, the low-temperature condition lower than described normal temperature state, suitably guarantee radial clearance and the magnitude of interference of the surrounding of described rolling bearing.

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