カスタマーログイン 0 ショッピングカート
ホーム 書籍 電子書籍 ジャーナル 参考文献と会報 著者、編集者、レビュー者 A-Z商品インデックス
Proceedings of Symposium on Energy Engineering in the 21st Century (SEE2000) Volume I-IV

ISBN 印刷: 1-56700-132-7

EXPERIMENTAL INVESTIGATION OF FRICTION CHARACTERISTICS OF INSTRUMENT BALL BEARINGS IN VACUUM AND AT LHe TEMPERATURES

要約

The friction performance of precision instrument-size ball bearings at cryogenic temperatures are special important in designing space instruments which are need to be cooled to low temperatures during operation. The friction characteristics of ball bearings can be obtained by measuring the friction heat generated by the bearings. A reliable method for measuring the friction heat in vacuum and at liquid helium (LHe) temperatures is proposed in this paper. The experimental results for a stainless steel ball bearing with different rotating speeds, axial pre-loads and temperatures are presented. The friction heat generated at the bearing sample is found to be proportional to both rotating speed and axial pre-load and to be independent of temperature in the test range.
ホーム Begell Digital Portal Begellデジタルライブラリー ジャーナル 書籍 電子書籍 参考文献と会報 著者、編集者、レビュー者 A-Z商品インデックス 価格及び購読のポリシー Begell Houseの概要 連絡先 Language English 中文 Русский 日本語 Português Deutsch Français Español