Diffcrent from ordinary cylinder springs, die springs are of smaller size, higher rigidity and longer lifetime.
矩形截面模具弹簧与一般圆柱弹簧不同，它具有体积小，钢度大，疲劳寿命长特点。
The ball screw can be pre pressed, because the pre pressure can make the axial gap reach negative value, and then get higher rigidity.
滚珠丝杠可以加预压，由于预压力可使轴向间隙达到负值，进而得到较高的刚性。
The lead rail was redesigned to make it more high strength, and the rail working face higher rigidity and higher abrasion performance according to the actual situations.
根据实际情况，重新设计了具有较高强度且工作面具有高硬度和耐磨性的导轨。
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