• Title/Summary/Keyword: 볼베어링

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초정밀 앵귤러 컨택트 볼 베어링 개발

  • 현준수;문호근;박태조
    • Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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    • 1998.04a
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    • pp.300-306
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    • 1998

  • A high precision angular contact ball bearing is developed by Hanwha Machinery Co. The developed bearing is 7004C with P4 class. The performance test was succeful until 60,000 rpm.

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고속 공작기계 주축용 앵귤러 콘택트 볼 베어링의 냉각효과

  • 신영재;이후상;박보선
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1997.04a
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    • pp.303-306
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    • 1997

  • In the case of a cooled air cooling applied to angular contact ball bearings in a high speed spindle unit,the heat generated heat in bearings is removed and the temperature of inner ring is decreased.. Therefore it is possible to increase the speed of spindle units.