Title:
BEARING STRUCTURE AND SUPERCHARGER
Document Type and Number:
Japanese Patent JP2019178756
Kind Code:
A
Abstract:
To suppress axial vibration of a shaft.SOLUTION: A bearing structure comprises: inner rings 20b, 21b provided on a shaft 8; rolling elements 20c, 21c provided along outer circumferential surfaces of the inner rings 20b, 21b; outer members (outer rings 20a, 21a) provided at a radial outside of the rolling elements 20c, 21c and having damper portions 25, 26 formed on the outer circumferential surfaces; facing portions (side wall portion 2f, seal plate 24) having facing surfaces 2g, 24a facing axial end surfaces 20g, 21g of the shaft 8, out of the outer members; proximity portions 30 provided in the end surfaces 20g, 21g or the facing surfaces 2g, 24a of the outer member; and separation portions (first groove portions 20j, 21j) provided in the end surfaces 20g, 21g or the facing surfaces 2g, 24a of the outer members, located at radially or circumferentially different positions with respect to the proximity portions, and having intervals to the end surfaces 20g, 21g and the facing surfaces 2g, 24a, larger than that to the proximity portions.SELECTED DRAWING: Figure 2
Inventors:
SAIURA HIROSHI
Application Number:
JP2018069094A
Publication Date:
October 17, 2019
Filing Date:
March 30, 2018
Export Citation:
Assignee:
IHI CORP
International Classes:
F16C33/58; F02B39/00; F16C19/16; F16C19/54; F16C23/06
Attorney, Agent or Firm:
Aomi patent office