special bearing accuracy
... special ball-bearing grease 球轴承专用润滑脂 special bearing accuracy 专用轴承精度 special design 特种设计，专用设计 ...
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进给传动：三向进给均采用交流伺服电机驱动精密滚珠丝杆，专用丝杆轴承支承，提高了机床的进给运动刚性和精度。
Feed transmission: using AC servo motor to drive the precise ball screw sets that supported by special ball screw bearing, which improves the rigidity and precision of feed movement.
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