A shaft of spindle with high speed and high stiffness could be stuck due to overheat generated by bearing and poor lubrication, and then the failure of spindle may occur. It should be seriously considered as a key factor for the bearing design of high-speed and high-stiffness spindle in order to increase the flow rate within the bearing with small clearance. A water lubricated hybrid bearing with multi-holes and deep/shallow recesses is proposed in the paper, which can be used in high-speed machine tool spindle. The FLUENT software is used to simulate flow field inside of bearing. For a compute time efficiency, a one-eighth bearing model is built for CFD analysis according to the bearing symmetry. The results show that, inlet and outlet oil ports could be placed in the same deep recess. Lubricant flowing into deep recess through the orifice restrictor could work appropriately for lubrication purpose of high-speed bearing, but not directly flowing out of outlet in the same groove as many people assumed. The remarkable turbulence flow occurs for lubricant in deep recess and gradually weakens in the shallow recesses.
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STLE/ASME 2010 International Joint Tribology Conference
October 17–20, 2010
San Francisco, California, USA
Conference Sponsors:
- Tribology Division
ISBN:
978-0-7918-4419-9
PROCEEDINGS PAPER
The Flow Field Simulation of a Novel Water-Lubricated Hybrid Bearing for High-Speed Spindle Available to Purchase
Wei Chen,
Wei Chen
Xi’an Jiaotong University, Xi’an, Shaanxi, China
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Fangfang Wang,
Fangfang Wang
Xi’an Jiaotong University, Xi’an, Shaanxi, China
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Youfeng Zhang
Youfeng Zhang
Xi’an Jiaotong University, Xi’an, Shaanxi, China
Search for other works by this author on:
Wei Chen
Xi’an Jiaotong University, Xi’an, Shaanxi, China
Fangfang Wang
Xi’an Jiaotong University, Xi’an, Shaanxi, China
Youfeng Zhang
Xi’an Jiaotong University, Xi’an, Shaanxi, China
Paper No:
IJTC2010-41046, pp. 91-93; 3 pages
Published Online:
April 14, 2011
Citation
Chen, W, Wang, F, & Zhang, Y. "The Flow Field Simulation of a Novel Water-Lubricated Hybrid Bearing for High-Speed Spindle." Proceedings of the STLE/ASME 2010 International Joint Tribology Conference. STLE/ASME 2010 International Joint Tribology Conference. San Francisco, California, USA. October 17–20, 2010. pp. 91-93. ASME. https://doi.org/10.1115/IJTC2010-41046
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