No.1004 2007インダストリ特集号 圧延機バックアップロール用油膜軸受の転がり軸受化改造手法の開発 |
| カテゴリー | 資料 |
|---|---|
| 筆者 | 軸受・駆動事業本部 産業機器技術部 久保潤一 鈴木宣哉 |
| 要旨 | As back-up roll bearings in rolling mills must support several thousand tons of rolling force, it is known that their running accuracy has significant effect on the gauge accuracy. In cold rolling mills, regarding which the requirement for gauge accuracy is severe, it is particularly critical to keep good running accuracy. Steelmakers have taken various approaches to improving gauge accuracy, one of which is modifying the rolling mills by replacing the oil film bearings with rolling bearings. Since JTEKT in 1984 became the first in Japan to carry out such plate rolling mill modification by the back-up roll bearing replacement, JTEKT has carried out numerous such modifications, including the tandem cold mills. This paper presents JTEKT's method of the rolling mill modification by replacing the oil film bearings with rolling bearings as the back-up roll bearing. |
| キーワード | Four row cylindrical roller bearing, oil fi lm bearing, back-up roll, rolling mill |
| 関連リンク | 北野利明：圧延機超薄肉バックアップロ- ル用軸受の開発, Koyo Engineering Journal, No. 128（1985）32.
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