<h4 style="margin: 0px; padding: 0px; -webkit-font-smoothing: antialiased; scrollbar-color: rgba(184, 186, 193, 0.6) transparent; scrollbar-width: thin; color: rgb(51, 51, 51); font-family: "PingFang SC", Arial, sans-serif; text-wrap-mode: wrap; background-color: rgb(255, 255, 255);"><span style="margin: 0px; padding: 0px; -webkit-font-smoothing: antialiased; scrollbar-color: rgba(184, 186, 193, 0.6) transparent; scrollbar-width: thin; -webkit-text-stroke-color: rgb(51, 51, 51);">一、疲劳剥落</span></h4><p class="marklang-paragraph" style="margin-top: 7px; margin-bottom: 7px; padding: 0px; -webkit-font-smoothing: antialiased; scrollbar-color: rgba(184, 186, 193, 0.6) transparent; scrollbar-width: thin; line-height: 29px; color: rgb(51, 51, 51); -webkit-text-stroke-color: initial; font-family: "PingFang SC", Arial, sans-serif; text-wrap-mode: wrap; background-color: rgb(255, 255, 255);"><span style="margin: 0px; padding: 0px; -webkit-font-smoothing: antialiased; scrollbar-color: rgba(184, 186, 193, 0.6) transparent; scrollbar-width: thin; -webkit-text-stroke-color: rgb(51, 51, 51); font-weight: 600 !important;">特征</span>：滚道/滚子表面呈鱼鳞状剥落，伴随周期性振动。<br/><span style="margin: 0px; padding: 0px; -webkit-font-smoothing: antialiased; scrollbar-color: rgba(184, 186, 193, 0.6) transparent; scrollbar-width: thin; -webkit-text-stroke-color: rgb(51, 51, 51); font-weight: 600 !important;">成因</span>：</p><ul style="list-style-type: none;" class=" list-paddingleft-2"><li><p>超载运行（接触应力＞轴承额定C/P值）</p></li><li><p>润滑不足（油膜厚度＜0.1μm）<br/><span style="margin: 0px; padding: 0px; -webkit-font-smoothing: antialiased; scrollbar-color: rgba(184, 186, 193, 0.6) transparent; scrollbar-width: thin; -webkit-text-stroke-color: rgb(51, 51, 51); font-weight: 600 !important;">对策</span>：</p></li><li><p>改用NACHI HTR系列渗碳轴承（表面硬度HRC62±2）</p></li><li><p>强化润滑（油气润滑压力≥0.25MPa）</p></li></ul><h4 style="margin: 0px; padding: 0px; -webkit-font-smoothing: antialiased; scrollbar-color: rgba(184, 186, 193, 0.6) transparent; scrollbar-width: thin; color: rgb(51, 51, 51); font-family: "PingFang SC", Arial, sans-serif; text-wrap-mode: wrap; background-color: rgb(255, 255, 255);"><span style="margin: 0px; padding: 0px; -webkit-font-smoothing: antialiased; scrollbar-color: rgba(184, 186, 193, 0.6) transparent; scrollbar-width: thin; -webkit-text-stroke-color: rgb(51, 51, 51);">二、电腐蚀损伤</span></h4><p class="marklang-paragraph" style="margin-top: 7px; margin-bottom: 7px; padding: 0px; -webkit-font-smoothing: antialiased; scrollbar-color: rgba(184, 186, 193, 0.6) transparent; scrollbar-width: thin; line-height: 29px; color: rgb(51, 51, 51); -webkit-text-stroke-color: initial; font-family: "PingFang SC", Arial, sans-serif; text-wrap-mode: wrap; background-color: rgb(255, 255, 255);"><span style="margin: 0px; padding: 0px; -webkit-font-smoothing: antialiased; scrollbar-color: rgba(184, 186, 193, 0.6) transparent; scrollbar-width: thin; -webkit-text-stroke-color: rgb(51, 51, 51); font-weight: 600 !important;">特征</span>：滚道对称性电弧纹，电流密度＞10mA时加速失效。<br/><span style="margin: 0px; padding: 0px; -webkit-font-smoothing: antialiased; scrollbar-color: rgba(184, 186, 193, 0.6) transparent; scrollbar-width: thin; -webkit-text-stroke-color: rgb(51, 51, 51); font-weight: 600 !important;">防治</span>：</p><ul style="list-style-type: none;" class=" list-paddingleft-2"><li><p>加装绝缘陶瓷涂层轴承（型号INS-25）</p></li><li><p>接地电阻控制在＜4Ω</p></li></ul><h4 style="margin: 0px; padding: 0px; -webkit-font-smoothing: antialiased; scrollbar-color: rgba(184, 186, 193, 0.6) transparent; scrollbar-width: thin; color: rgb(51, 51, 51); font-family: "PingFang SC", Arial, sans-serif; text-wrap-mode: wrap; background-color: rgb(255, 255, 255);"><span style="margin: 0px; padding: 0px; -webkit-font-smoothing: antialiased; scrollbar-color: rgba(184, 186, 193, 0.6) transparent; scrollbar-width: thin; -webkit-text-stroke-color: rgb(51, 51, 51);">三、微动磨损</span></h4><p class="marklang-paragraph" style="margin-top: 7px; margin-bottom: 7px; padding: 0px; -webkit-font-smoothing: antialiased; scrollbar-color: rgba(184, 186, 193, 0.6) transparent; scrollbar-width: thin; line-height: 29px; color: rgb(51, 51, 51); -webkit-text-stroke-color: initial; font-family: "PingFang SC", Arial, sans-serif; text-wrap-mode: wrap; background-color: rgb(255, 255, 255);"><span style="margin: 0px; padding: 0px; -webkit-font-smoothing: antialiased; scrollbar-color: rgba(184, 186, 193, 0.6) transparent; scrollbar-width: thin; -webkit-text-stroke-color: rgb(51, 51, 51); font-weight: 600 !important;">特征</span>：轴承座配合面呈橘皮状，振动频率1-3kHz。<br/><span style="margin: 0px; padding: 0px; -webkit-font-smoothing: antialiased; scrollbar-color: rgba(184, 186, 193, 0.6) transparent; scrollbar-width: thin; -webkit-text-stroke-color: rgb(51, 51, 51); font-weight: 600 !important;">解决方案</span>：</p><ul style="list-style-type: none;" class=" list-paddingleft-2"><li><p>采用过盈配合（H7/k6公差带）</p></li><li><p>使用NACHI防锈油膜技术（耐盐雾＞500h）</p></li></ul><h4 style="margin: 0px; padding: 0px; -webkit-font-smoothing: antialiased; scrollbar-color: rgba(184, 186, 193, 0.6) transparent; scrollbar-width: thin; color: rgb(51, 51, 51); font-family: "PingFang SC", Arial, sans-serif; text-wrap-mode: wrap; background-color: rgb(255, 255, 255);"><span style="margin: 0px; padding: 0px; -webkit-font-smoothing: antialiased; scrollbar-color: rgba(184, 186, 193, 0.6) transparent; scrollbar-width: thin; -webkit-text-stroke-color: rgb(51, 51, 51);">四、安装损伤</span></h4><p class="marklang-paragraph" style="margin-top: 7px; margin-bottom: 7px; padding: 0px; -webkit-font-smoothing: antialiased; scrollbar-color: rgba(184, 186, 193, 0.6) transparent; scrollbar-width: thin; line-height: 29px; color: rgb(51, 51, 51); -webkit-text-stroke-color: initial; font-family: "PingFang SC", Arial, sans-serif; text-wrap-mode: wrap; background-color: rgb(255, 255, 255);"><span style="margin: 0px; padding: 0px; -webkit-font-smoothing: antialiased; scrollbar-color: rgba(184, 186, 193, 0.6) transparent; scrollbar-width: thin; -webkit-text-stroke-color: rgb(51, 51, 51); font-weight: 600 !important;">关键参数</span>：</p><ul style="list-style-type: none;" class=" list-paddingleft-2"><li><p>轴向预紧力误差需＜5%</p></li><li><p>轴承座圆度≤0.005mm</p></li></ul><p><br/></p>