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(1)轴承的采用
考虑到与在刚性上的均衡,使用高刚性低扭矩的角接触球轴承(30°、自由组合)。同时,超小型支撑单元EK6、8装有为超小型滚珠螺杆所开发的超小型角接触球轴承。这种轴承接触角是45°,球径小、球数多,是具有高刚性、高精度的超小型角接触球轴承,能获得稳定的回转性能。
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(2)支撑单元的形状
支撑单元有角型和圆型系列,可根据用途选择。
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(3)小型且安装简便
支撑单元是考虑了安装周围空间的、小体积的设计。同时,装入了经过调整预压的轴承,交货后就可直接进行装配,既降低了装配工时,又可提高装配精度
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