The structure of the main shaft bearing assembly can decide its using conditions. 主轴轴承的结构形式又决定了螺杆钻具的使用条件。
The technology of surface modification was an efficient way to increase fatigue life of the mainshaft bearing of the aircraft engines. 摘要表面改性处理技术是一种提高航空发动机主轴轴承疲劳寿命的有效途径。
