The technology of surface modification was an efficient way to increase fatigue life of the mainshaft bearing of the aircraft engines.
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。
The HDL series automatic tool-changing electrical mainshaft developed by the company can be used combined with the high speed numerical control machining center.
公司开发的HDL系列自动换刀电主轴与高速数控加工中心配套使用。
An assembly step matching the shaft shoulder of the mainshaft is positioned on the shaft sleeve and a fixed gap forms between the shaft sleeve step and the water-tight plate.
轴套上设有与主轴轴肩配置的装配台阶，轴套台阶与水密封板之间形成有固定的间隙。
The concept of evaluation error of the mainshaft rotary precision for turning machines defined with rotary center error and that for boring machines defined with rotary axle center are presented.
提出了用回转中心误差定义的车削类主轴回转运动精度的评定误差和用回转轴心误差定义的镗削类主轴回转运动精度的评定误差的概念。
The concept of evaluation error of the mainshaft rotary precision for turning machines defined with rotary center error and that for boring machines defined with rotary axle center are presented.
提出了用回转中心误差定义的车削类主轴回转运动精度的评定误差和用回转轴心误差定义的镗削类主轴回转运动精度的评定误差的概念。
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