Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)
- 2006.09a
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- Pages.379-380
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- 2006
Development of High Performance Multi-lobe Fluid Dynamic Bearings Using a Sintered Material
Abstract
Recently, in spindle motors for hard disk drive (HDD) devices, fluid dynamic bearings (FDB) with herringbone grooves have come to be used instead of ball bearings due to the demand for high density recording of the devices etc. In this study, a 5-lobe bearing with high bearing stiffness using a sintered material was developed, and the bearing performance was examined by simulated calculations and experiments. As a result, it was clarified that the 5-lobe bearing had the required performance for practical use in the spindle motor for HDD