Title:
自己潤滑性転がり軸受およびその製造方法
Document Type and Number:
Japanese Patent JP6846510
Kind Code:
B2
Abstract:
A self-lubricating rolling bearing is provided. The chemical compositions in the inner rings and the outer rings of bearing are 3.4-3.7% C, 2.7-2.9% Si, 0.3-0.5% Mn, 0.3-0.5% Cr, ≤0.05% S, ≤0.05% P, 0.03-0.045% Residual Mg, and the remainder Fe. The total percent of the chemical compositions is 100%. The material for the inner and outer rings of the rolling bearing introduced in the invention is austempered ductile iron (ADI). In the microstructure of ADI, the diameter of the graphite nodules is less than 0.02 mm, the number of graphite spheres per square millimeter is more than 400, and the microstructure of the metal matrix in the ADI can be showed clearly only when it is observed on the microscope with a magnification more than 500. Eventually, the self-lubricating rolling bearings are made from the ADI.
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Inventors:
Forgiveness
Face country
Liu Hoken
Face country
Liu Hoken
Application Number:
JP2019511920A
Publication Date:
March 24, 2021
Filing Date:
August 31, 2017
Export Citation:
Assignee:
Xi'an University of Technology
International Classes:
F16C33/62; B22D11/041; F16C19/02; F16C19/22; F16C33/56; F16C33/64
Domestic Patent References:
| JP34004456B1 | ||||
| JP60018248B2 |
Attorney, Agent or Firm:
Norihito Yamao
Yoshiyuki Maebori
Toshiyuki Yamazaki
Yoshiyuki Maebori
Toshiyuki Yamazaki