Performance of sliders flying over discrete-track media

Jianhua Li, Junguo Xu, Yuki Shimizu

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


A simulation method in which grooves are virtually distributed on the slider air bearing instead of on the grooved medium surface has been developed and used to investigate the performance of sliders flying over the surface of a discrete-track medium. The simulated flying height loss due to a discrete-track medium coincides well with the measured data, whereas the average-estimation method overestimates flying height loss. Among the characteristics of a slider flying over the surface of a discrete-track medium that were studied are the flying attitude, the effect of groove parameters on flying profile, and the flying height losses due to manufacturing variation and altitude. The results indicate that when a slider is flying over the surface of a discrete-track medium, it will have a higher 3σ of flying height, be more sensitive to altitude, and will have a greater flying height loss.

Original languageEnglish
Pages (from-to)712-719
Number of pages8
JournalJournal of Tribology
Issue number4
Publication statusPublished - 2007 Oct 1
Externally publishedYes


  • Air bearing slider
  • Discrete track medium
  • Flying height
  • Head-disk interface

ASJC Scopus subject areas

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


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