<p style="margin:0cm 0cm 0pt;" class="MsoNormal"><span style="font-size:small;"><span style="font-family:宋体;letter-spacing:0.75pt;mso-ascii-font-family:'Times New Roman';mso-hansi-font-family:'Times New Roman';mso-bidi-font-size:10.5pt;">轴承的刚性,是指轴承产生单位变形所需力之大小。滚动轴承的弹性变形很小,在大多数机械中可以不必考虑,但在某些机械中,如机床主轴,轴承刚性则是一个重要因素,一般应选用圆柱和圆锥滚子轴承。因为这两类轴承在承受载荷时,其滚动体与滚道属于点接触,刚性较差。</span><span style="letter-spacing:0.75pt;mso-bidi-font-size:10.5pt;" lang="EN-US"><span style="font-family:'Times New Roman';"><span style="mso-spacerun:yes;"> </span><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></span></span></span></p>
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