In a magnetic recording disk file, pitch moment exerted by the flexure on the slider is usually treated as a product of flexure pitch-static-attitude (PSA) and pitch-stiffness (Kp), both measured in the absence of preload (gram-load). However in the presence of preload, pitch moment due to dimple friction must be considered. We shall show by elementary beam theory that lever-arm of the dimple friction is related to the flexure bow-height, and that to minimize uncertainty in the pitch moment, hence improving the fly height distribution, the flexure must bow toward the disk. These results will be confirmed experimentally.
- Tribology Division
Slider Pitch Moment Associated With Dimple Friction
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Zhu, L, Yang, C, Fu, Y, & Cha, E. "Slider Pitch Moment Associated With Dimple Friction." Proceedings of the ASME/STLE 2004 International Joint Tribology Conference. ASME/STLE 2004 International Joint Tribology Conference, Parts A and B. Long Beach, California, USA. October 24–27, 2004. pp. 1549-1554. ASME. https://doi.org/10.1115/TRIB2004-64251
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