The paper proposes a new method of using the ultrasonic-speed turbine as a power sourse and using the magnetic suspension bearing as the main back-upbearing for the rotation axis.
本文提出用永磁材料制作的永磁悬浮轴承作高速旋转轴的主要支承，轴流式超音涡转作回转轴的驱动动力源。
2
To control the clearance between both sides of bearing chuck in back-up roll, keep sealing tips in a good touching state and use correct spare parts both in function and dimension.
必须有效控制支承辊两侧轴承座的间距、保持密封件唇口良好接触状态及采用性能、尺寸合格的备件。
3
The sixth chapter is of micro-dimensional behavior analiysis of large-scale rolling mill back-up roll system and load characteristic of its oil film bearing.