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<p style="margin:0cm 0cm 0pt;" class="MsoNormal"><span style="font-size:small;"><span style="font-family:宋体;color:red;mso-ascii-font-family:'Times New Roman';mso-hansi-font-family:'Times New Roman';">机床主轴对</span><span style="color:red;" lang="EN-US"><span style="font-family:'Times New Roman';">SKF</span></span><span style="font-family:宋体;color:red;mso-ascii-font-family:'Times New Roman';mso-hansi-font-family:'Times New Roman';">轴承的技术要求</span><span style="font-family:宋体;mso-ascii-font-family:'Times New Roman';mso-hansi-font-family:'Times New Roman';">：</span><span lang="EN-US"><span style="font-family:'Times New Roman';">1</span></span><span style="font-family:宋体;mso-ascii-font-family:'Times New Roman';mso-hansi-font-family:'Times New Roman';">、转速与温升：随着科学技术的发展，机床主轴转速越来越高，变速范围越来越大，因此，对轴承高速运转稳定性的要求也越来越高。机床主轴轴承温升是限制轴承转速的重要因素。</span></span></p>
<p style="margin:0cm 0cm 0pt;" class="MsoNormal"><span style="font-size:small;"><span lang="EN-US"><span style="font-family:'Times New Roman';">2</span></span><span style="font-family:宋体;mso-ascii-font-family:'Times New Roman';mso-hansi-font-family:'Times New Roman';">、寿命及承载能力：对一般机床来说</span><span lang="EN-US"><span style="font-family:'Times New Roman';">,</span></span><span style="font-family:宋体;mso-ascii-font-family:'Times New Roman';mso-hansi-font-family:'Times New Roman';">主轴组件的寿命主要是指其保持主轴精度的使用期限</span><span lang="EN-US"><span style="font-family:'Times New Roman';">,</span></span><span style="font-family:宋体;mso-ascii-font-family:'Times New Roman';mso-hansi-font-family:'Times New Roman';">因此</span><span lang="EN-US"><span style="font-family:'Times New Roman';">,</span></span><span style="font-family:宋体;mso-ascii-font-family:'Times New Roman';mso-hansi-font-family:'Times New Roman';">要求轴承的精度保持性能满足主轴组件寿命的要求。</span></span></p>
<p style="margin:0cm 0cm 0pt;" class="MsoNormal"><span style="font-size:small;"><span style="letter-spacing:0.75pt;mso-bidi-font-size:10.5pt;" lang="EN-US"><span style="font-family:'Times New Roman';">3</span></span><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;">、刚度和抗振性：保证机床的加工质量，必须使主轴系统有足够的刚性，否则会产生较大的复映误差甚至颤振。抗振性是指抵抗受迫振动和自激震动的能力。主轴组件的抗振性取决于主轴和轴承的刚度和阻尼。</span><span style="letter-spacing:0.75pt;mso-bidi-font-size:10.5pt;" lang="EN-US"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></span></span></p>
<p style="margin:0cm 0cm 0pt;" class="MsoNormal"><span style="font-size:small;"><span style="letter-spacing:0.75pt;mso-bidi-font-size:10.5pt;" lang="EN-US"><span style="font-family:'Times New Roman';">4</span></span><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;">、噪声：在高速磨床中，磨头轴承的噪声是整机噪声中的主要成分，应选用低噪声滚动轴承。</span></span><span style="letter-spacing:0.75pt;mso-bidi-font-size:10.5pt;" lang="EN-US"><o:p></o:p></span></p>
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