Observation of residual stress variation on rolling fatigue of steel ball

Ryousuke Ano, Masahiro Fujii, Hiroshi Ohsaki

Research output: Contribution to journalArticle

Abstract

Steel ball used for the deep groove ball bearing (hereafter steel ball) is an important mechanical component which supports the industries and our daily lives. The usage environment of steel ball has increasingly become multifaceted and severe with downsizing and souped-up on especially automotive and industrial machine applications. Since steel ball is under heavily-loaded environment, the improvement of steel ball reliability is one of the most important action assignments. Authors have been focusing on steel ball and researching for the improvement of steel ball reliability1,2,3). In general, steel ball is given the residual stress to constrict the indentation on treating, but residual stress influences rolling fatigue life of steel ball. In this report, the rolling fatigue lives of steel balls with various residual stress distributions were evaluated under dynamic load condition which could make the flaking preferentially on steel ball in bearing. It was examined how residual stress affected on rolling fatigue of steel ball by investigating residual stress variations particularly under rolling fatigue with X-ray diffraction. In the result, initial residual stress of steel ball was changed drastically by rolling contact, and increasing of radial residual stress mainly caused the flaking of steel ball.

Original languageEnglish
Pages (from-to)393-400
Number of pages8
JournalToraibarojisuto/Journal of Japanese Society of Tribologists
Volume61
Issue number6
Publication statusPublished - 2016

Fingerprint

Steel
residual stress
balls
Residual stresses
steels
Fatigue of materials
flaking
fatigue life
Bearings (structural)
Deep groove ball bearings
ball bearings
dynamic loads
Dynamic loads
indentation
Indentation
grooves
stress distribution
Stress concentration

Keywords

  • Ball bearing
  • Residual stress
  • Residual stress variation
  • Rolling fatigue life
  • Steel ball

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Observation of residual stress variation on rolling fatigue of steel ball. / Ano, Ryousuke; Fujii, Masahiro; Ohsaki, Hiroshi.

In: Toraibarojisuto/Journal of Japanese Society of Tribologists, Vol. 61, No. 6, 2016, p. 393-400.

Research output: Contribution to journalArticle

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