Quantitative evaluation of the flaking strength of rolling bearings with small defects as a crack problem

Sho Hashimoto, Hiroki Komata, Saburo Okazaki, Hisao Matsunaga

Research output: Contribution to journalArticle

Abstract

Rolling contact fatigue (RCF) tests were conducted on rolling bearings with drilled holes at the mid-point of the raceway. Flaking limit was determined by the shear-mode threshold of a crack that emanated at the edge of drilled hole. To quantify the RCF strength according to fracture mechanics principles, Mode II stress intensity factor (SIF) range of the crack was derived. Taking a small crack effect on the shear-mode fatigue crack into account, RCF strength was successfully evaluated as a crack problem, irrespective of the diameters and depths of the hole. The values of the threshold SIF range obtained by RCF tests were in good agreement with those obtained in the torsional fatigue tests under static compression.

Original languageEnglish
Pages (from-to)195-203
Number of pages9
JournalInternational Journal of Fatigue
Volume119
DOIs
Publication statusPublished - Feb 2019

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Fingerprint Dive into the research topics of 'Quantitative evaluation of the flaking strength of rolling bearings with small defects as a crack problem'. Together they form a unique fingerprint.

Cite this