Quantitative clarification for influence of external vibration to damage in small ball bearing
| Project/Area Number |
26420088
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Design engineering/Machine functional elements/Tribology
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| Research Institution | Kanto Gakuin University |
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Principal Investigator |
KANADA Tohru 関東学院大学, 理工学部, 教授 (20169551)
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| Co-Investigator(Kenkyū-buntansha) |
宮永 宜典 関東学院大学, 理工学部, 准教授 (00547060)
野口 昭治 東京理科大学, 理工学部機械工学科, 教授 (80349836)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | 軸受寿命 / 軸受損傷 / 外部振動 / 寿命計算規格 / 補正係数 / 転がり軸受 / 寿命 / 転がり玉軸受 |
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| Outline of Final Research Achievements |
For small ball bearings (608VV), in the range of external radial vibration whose frequency is 24.75±0.5Hz and vibration acceleration is up to 10m/s2, almost all the test bearings kept their duration life. However, when the external vibration became larger, it was observed that the vibration arising from the test bearing increased with the external vibration. In case that the external vibration was applied, a travel trail came to be highly visible on the fixed outer raceway surface for loading area. Furthermore, it was made clear that the travel trail became more heavy and distinguished with larger external vibration. Though there was a tendency that the surface fatigue in the outer raceway for loading area increased, it was confirmed that the value of fatigue index was small and the surface fatigue was not an influencing factor in this case.
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Report
(4 results)
Research Products
(6 results)
