Space Technology Research Group, National Aerospace Laboratory(NAL)
Space Technology Research Group, National Aerospace Laboratory(NAL)
Space Technology Research Group, National Aerospace Laboratory(NAL)
出版者
航空宇宙技術研究所
出版者（英）
National Aerospace Laboratory(NAL)
雑誌名
航空宇宙技術研究所報告
雑誌名(英)
Technical Report of National Aerospace Laboratory TR-514
巻
514
ページ
17
発行年
1977-10
抄録（英）
The experiments were conducted to clarify the performance of angular contact ball bearings(#30 BNT) with oil mist lubrication at high dn values as compared with oil jet lubrication. The test bearings were rotated by a 16 PS air turbine at 110×10(exp 3) rmp. A thrust load of 50 kg was exerted as the bearing load with mineral oil base, turbo-oil used to lubricate the test bearing. The test bearings with oil jet lubrication were operated successfully at a dn value of 3.27×10(exp 6) with oil flow above 2 kg/min. However, the test bearings using oil mist lubrication could not be successfully operated at a dn value above 2.16×10(exp 6) with an air flow of 3 kg/min and oil flow of 4ml/min. At high dn values, the bearing temperature rise with oil jet lubrication was smaller than that with oil mist lubrication, despite the large friction moment introduced by much oil of jet. Therefore, it was concluded that oil jet lubrication is best suited to ultrahigh-speed operation.
オイルミスト,ジェット潤滑玉軸受の高dn値における性能
naltr00514.pdf
(1.47MB)
