<p style="text-indent: 0px; padding: 0px; background: rgb(255, 255, 255); text-align: center;"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 15px"><span style="font-family:PingFang SC-Regular">发布时间：2025年5月15日 NACHI</span></span></p><p style=";text-indent: 0;padding: 0;background: rgb(255, 255, 255)"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 15px"><span style="font-family:PingFang SC-Regular">在选择</span>NACHI进口精密滚珠丝杆两端的轴承时，需综合考虑多个关键因素以确保系统的精度、刚性、寿命和可靠性。以下是具体的选择要点：</span></p><p style="margin-left: 0;text-indent: 0;border-right: 1px solid windowtext;border-bottom: 1px solid windowtext;border-left: 1px solid windowtext;padding: 0;background: rgb(255, 255, 255)"><br/></p><hr/><p><br/></p><h3 style="margin-left: 0;text-indent: 0;background: rgb(255, 255, 255)"><strong><span style="font-family: 'PingFang SC-Regular';letter-spacing: 1px">1. 轴承类型选择</span></strong></h3><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family:Symbol;font-size:13px">· </span></p><p style="margin: 0 0 0 48px;padding: 0"><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">角接触球轴承（常用）</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 16px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：</span></span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family:Symbol;font-size:13px">· </span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family: Wingdings;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">§ </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">适用场景</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：高转速、高精度、高刚性要求的场合。</span></span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family: Wingdings;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">§ </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">特点</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：可承受轴向和径向联合载荷，通过预紧可消除轴向间隙，提升刚性和精度。</span></span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family: Wingdings;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">§ </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)">NACHI型号示例</span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：如</span> </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)">70/72系列</span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">（如</span>70BER、72BNR等），适合高精度滚珠丝杆支撑。</span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family: Wingdings;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">§ </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">配对方式</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：通常采用</span><span style="font-family:PingFang SC-Regular">“背对背”（DB）或“面对面”（DF）组合，以平衡轴向力并提高刚性。</span></span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family:Symbol;font-size:13px">· </span></p><p style="margin: 0 0 0 48px;padding: 0"><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">深沟球轴承（较少用）</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 16px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：</span></span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family:Symbol;font-size:13px">· </span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family: Wingdings;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">§ </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">适用场景</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：低速、低载荷或对轴向刚性要求不高的场合。</span></span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family: Wingdings;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">§ </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">特点</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：结构简单，但轴向承载能力较弱，需配合其他轴承使用。</span></span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family: Wingdings;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">§ </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)">NACHI型号示例</span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：如</span>60/62系列，需谨慎用于精密滚珠丝杆。</span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family:Symbol;font-size:13px">· </span></p><p style="margin: 0 0 0 48px;padding: 0"><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">圆柱滚子轴承（特殊场景）</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 16px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：</span></span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family:Symbol;font-size:13px">· </span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family: Wingdings;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">§ </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">适用场景</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：高径向载荷、低轴向载荷的场合（需配合其他轴承）。</span></span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family: Wingdings;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">§ </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">特点</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：滚子与滚道线接触，径向承载能力强，但轴向支撑需依赖其他轴承。</span></span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family: Wingdings;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">§ </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)">NACHI型号示例</span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：如</span>NU205系列，需与角接触球轴承组合使用。</span></p><p style="margin-left: 0;text-indent: 0;border-right: 1px solid windowtext;border-bottom: 1px solid windowtext;border-left: 1px solid windowtext;padding: 0;background: rgb(255, 255, 255)"><br/></p><hr/><p><br/></p><h3 style="margin-left: 0;text-indent: 0;background: rgb(255, 255, 255)"><strong><span style="font-family: 'PingFang SC-Regular';letter-spacing: 1px">2. 精度等级匹配</span></strong></h3><p style="margin: 0 0 0 48px;padding: 0"><span style="font-family: Symbol;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">· </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">轴承精度</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：需与滚珠丝杆精度匹配，通常选择</span> </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)">P4级（ISO 4级）</span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"> 或更高精度（如P2级）。</span></p><p style="margin: 0 0 0 48px;padding: 0"><span style="font-family: Symbol;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">· </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)">NACHI精度标识</span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：例如，后缀为</span><span style="font-family:PingFang SC-Regular">“H”或“P4”的型号（如70BER-H），表示高精度等级。</span></span></p><p style="margin-left: 0;text-indent: 0;border-right: 1px solid windowtext;border-bottom: 1px solid windowtext;border-left: 1px solid windowtext;padding: 0;background: rgb(255, 255, 255)"><br/></p><hr/><p><br/></p><h3 style="margin-left: 0;text-indent: 0;background: rgb(255, 255, 255)"><strong><span style="font-family: 'PingFang SC-Regular';letter-spacing: 1px">3. 预紧与刚性优化</span></strong></h3><p style="margin: 0 0 0 48px;padding: 0"><span style="font-family: Symbol;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">· </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">预紧目的</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：消除轴承内部游隙，提高轴向刚性和抗振性。</span></span></p><p style="margin: 0 0 0 48px;padding: 0"><span style="font-family: Symbol;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">· </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">预紧方式</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：</span></span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family: Wingdings;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">§ </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">固定预紧</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：通过调整轴承间距或使用隔套实现预紧（如</span>DB/DF配对）。</span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family: Wingdings;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">§ </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">弹性预紧</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：使用弹簧或液压装置动态调整预紧力，适应热膨胀。</span></span></p><p style="margin: 0 0 0 48px;padding: 0"><span style="font-family: Symbol;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">· </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)">NACHI建议</span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：根据负载和转速选择预紧力，避免过紧导致温升或磨损。</span></span></p><p style="margin-left: 0;text-indent: 0;border-right: 1px solid windowtext;border-bottom: 1px solid windowtext;border-left: 1px solid windowtext;padding: 0;background: rgb(255, 255, 255)"><br/></p><hr/><p><br/></p><h3 style="margin-left: 0;text-indent: 0;background: rgb(255, 255, 255)"><strong><span style="font-family: 'PingFang SC-Regular';letter-spacing: 1px">4. 载荷与转速匹配</span></strong></h3><p style="margin: 0 0 0 48px;padding: 0"><span style="font-family: Symbol;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">· </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">径向载荷</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：根据丝杆端部受力选择轴承尺寸（如内径、外径、宽度）。</span></span></p><p style="margin: 0 0 0 48px;padding: 0"><span style="font-family: Symbol;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">· </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">轴向载荷</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：角接触球轴承的轴向承载能力取决于接触角（如</span>25°~40°）。</span></p><p style="margin: 0 0 0 48px;padding: 0"><span style="font-family: Symbol;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">· </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">转速限制</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：</span></span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family: Wingdings;color: rgb(27, 28, 33);font-size: 13px;background: rgb(255, 255, 255)">§ </span><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">高速场景：选择小尺寸、轻量化轴承（如</span>70系列），并注意润滑和散热。</span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family: Wingdings;color: rgb(27, 28, 33);font-size: 13px;background: rgb(255, 255, 255)">§ </span><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">低速重载：选择大尺寸轴承（如</span>72系列），增强承载能力。</span></p><p style="margin-left: 0;text-indent: 0;border-right: 1px solid windowtext;border-bottom: 1px solid windowtext;border-left: 1px solid windowtext;padding: 0;background: rgb(255, 255, 255)"><br/></p><hr/><p><br/></p><h3 style="margin-left: 0;text-indent: 0;background: rgb(255, 255, 255)"><strong><span style="font-family: 'PingFang SC-Regular';letter-spacing: 1px">5. 安装与润滑</span></strong></h3><p style="margin: 0 0 0 48px;padding: 0"><span style="font-family: Symbol;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">· </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">安装方式</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：</span></span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family: Wingdings;color: rgb(27, 28, 33);font-size: 13px;background: rgb(255, 255, 255)">§ </span><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">轴承座需高精度加工，确保同轴度和垂直度。</span></span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family: Wingdings;color: rgb(27, 28, 33);font-size: 13px;background: rgb(255, 255, 255)">§ </span><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">使用锁紧螺母或法兰固定轴承，避免松动。</span></span></p><p style="margin: 0 0 0 48px;padding: 0"><span style="font-family: Symbol;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">· </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">润滑方式</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：</span></span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family: Wingdings;color: rgb(27, 28, 33);font-size: 13px;background: rgb(255, 255, 255)">§ </span><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">油脂润滑：选择高速、低温升的润滑脂（如</span>NACHI Lubrication NHB系列）。</span></p><p style="margin: 0 0 0 96px;padding: 0"><span style="font-family: Wingdings;color: rgb(27, 28, 33);font-size: 13px;background: rgb(255, 255, 255)">§ </span><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">油雾或循环油润滑：适用于高速或高温环境。</span></span></p><p style="margin-left: 0;text-indent: 0;border-right: 1px solid windowtext;border-bottom: 1px solid windowtext;border-left: 1px solid windowtext;padding: 0;background: rgb(255, 255, 255)"><br/></p><hr/><p><br/></p><h3 style="margin-left: 0;text-indent: 0;background: rgb(255, 255, 255)"><strong><span style="font-family: 'PingFang SC-Regular';letter-spacing: 1px">6. 其他注意事项</span></strong></h3><p style="margin: 0 0 0 48px;padding: 0"><span style="font-family: Symbol;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">· </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">密封与防护</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：在多尘或潮湿环境中，增加密封圈（如</span>NACHI的ZZ/2RS后缀型号）。</span></p><p style="margin: 0 0 0 48px;padding: 0"><span style="font-family: Symbol;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">· </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">振动与噪声</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：选择低振动等级轴承，并优化预紧和润滑。</span></span></p><p style="margin: 0 0 0 48px;padding: 0"><span style="font-family: Symbol;color: rgb(27, 28, 33);font-weight: bold;font-size: 13px;background: rgb(255, 255, 255)">· </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">温度影响</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">：考虑温升对预紧的影响，预留热膨胀补偿。</span></span></p><p style="margin-left: 0;text-indent: 0;border-right: 1px solid windowtext;border-bottom: 1px solid windowtext;border-left: 1px solid windowtext;padding: 0;background: rgb(255, 255, 255)"><br/></p><hr/><p><br/></p><h3 style="margin-left: 0;text-indent: 0;background: rgb(255, 255, 255)"><strong><span style="font-family: 'PingFang SC-Regular';letter-spacing: 1px">NACHI推荐型号示例</span></strong></h3><table width="573"><tbody><tr style="height:23px" class="firstRow"><td valign="center" style="padding:1px 1px 1px 1px ;border-left:none;border-right:none;border-top:none;border-bottom:none;background:rgb(220,233,249)"><p style=";text-align:center"><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 16px">场景</span></strong></p></td><td valign="center" style="padding:1px 1px 1px 1px ;border-left:none;border-right:none;border-top:none;border-bottom:none;background:rgb(220,233,249)"><p style=";text-align:center"><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 16px">轴承型号</span></strong></p></td><td valign="center" style="padding:1px 1px 1px 1px ;border-left:none;border-right:none;border-top:none;border-bottom:none;background:rgb(220,233,249)"><p style=";text-align:center"><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 16px">配对方式</span></strong></p></td><td valign="center" style="padding:1px 1px 1px 1px ;border-left:none;border-right:none;border-top:none;border-bottom:none;background:rgb(220,233,249)"><p style=";text-align:center"><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 16px">特点</span></strong></p></td></tr><tr style="height:44px"><td valign="center" style="padding:1px 1px 1px 1px ;border-left:none;border-right:none;border-top:none;border-bottom:none;background:rgb(255,255,255)"><p style=";text-align:center"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 16px">高精度机床主轴</span></p></td><td valign="center" style="padding:1px 1px 1px 1px ;border-left:none;border-right:none;border-top:none;border-bottom:none;background:rgb(255,255,255)"><p style=";text-align:center"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 16px">70BER-H + 72BNR-H</span></p></td><td valign="center" style="padding:1px 1px 1px 1px ;border-left:none;border-right:none;border-top:none;border-bottom:none;background:rgb(255,255,255)"><p style=";text-align:center"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 16px">DB/DF</span></p></td><td valign="center" style="padding:1px 1px 1px 1px ;border-left:none;border-right:none;border-top:none;border-bottom:none;background:rgb(255,255,255)"><p style=";text-align:center"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 16px">P4级精度，高刚性</span></p></td></tr><tr style="height:44px"><td valign="center" style="padding:1px 1px 1px 1px ;border-left:none;border-right:none;border-top:none;border-bottom:none;background:rgb(255,255,255)"><p style=";text-align:center"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 16px">高速低载荷场景</span></p></td><td valign="center" style="padding:1px 1px 1px 1px ;border-left:none;border-right:none;border-top:none;border-bottom:none;background:rgb(255,255,255)"><p style=";text-align:center"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 16px">7002A5TYN</span></p></td><td valign="center" style="padding:1px 1px 1px 1px ;border-left:none;border-right:none;border-top:none;border-bottom:none;background:rgb(255,255,255)"><p style=";text-align:center"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 16px">单列角接触</span></p></td><td valign="center" style="padding:1px 1px 1px 1px ;border-left:none;border-right:none;border-top:none;border-bottom:none;background:rgb(255,255,255)"><p style=";text-align:center"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 16px">轻量化，低摩擦</span></p></td></tr><tr style="height:44px"><td valign="center" style="padding:1px 1px 1px 1px ;border-left:none;border-right:none;border-top:none;border-bottom:none;background:rgb(255,255,255)"><p style=";text-align:center"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 16px">重载低速场合</span></p></td><td valign="center" style="padding:1px 1px 1px 1px ;border-left:none;border-right:none;border-top:none;border-bottom:none;background:rgb(255,255,255)"><p style=";text-align:center"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 16px">7210B/DT</span></p></td><td valign="center" style="padding:1px 1px 1px 1px ;border-left:none;border-right:none;border-top:none;border-bottom:none;background:rgb(255,255,255)"><p style=";text-align:center"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 16px">双列背靠背</span></p></td><td valign="center" style="padding:1px 1px 1px 1px ;border-left:none;border-right:none;border-top:none;border-bottom:none;background:rgb(255,255,255)"><p style=";text-align:center"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 16px">高轴向承载，耐冲击</span></p></td></tr><tr style="height:44px"><td valign="center" style="padding:1px 1px 1px 1px ;border-left:none;border-right:none;border-top:none;border-bottom:none;background:rgb(255,255,255)"><p style=";text-align:center"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 16px">高温或腐蚀性环境</span></p></td><td valign="center" style="padding:1px 1px 1px 1px ;border-left:none;border-right:none;border-top:none;border-bottom:none;background:rgb(255,255,255)"><p style=";text-align:center"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 16px">70BER-H + 2RS</span></p></td><td valign="center" style="padding:1px 1px 1px 1px ;border-left:none;border-right:none;border-top:none;border-bottom:none;background:rgb(255,255,255)"><p style=";text-align:center"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 16px">DB</span></p></td><td valign="center" style="padding:1px 1px 1px 1px ;border-left:none;border-right:none;border-top:none;border-bottom:none;background:rgb(255,255,255)"><p style=";text-align:center"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 16px">带密封，防尘防污染</span></p></td></tr></tbody></table><p style="margin-left: 0;text-indent: 0;border-right: 1px solid windowtext;border-bottom: 1px solid windowtext;border-left: 1px solid windowtext;padding: 0;background: rgb(255, 255, 255)"><br/></p><hr/><p><br/></p><h3 style="margin-left: 0;text-indent: 0;background: rgb(255, 255, 255)"><strong><span style="font-family: 'PingFang SC-Regular';letter-spacing: 1px">总结</span></strong></h3><p style="margin-left: 0;text-indent: 0;padding: 0;background: rgb(255, 255, 255)"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 15px"><span style="font-family:PingFang SC-Regular">选择</span>NACHI精密滚珠丝杆两端轴承时，需重点考虑：</span></p><p style="margin: 0 0 0 48px;padding: 0"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-weight: bold;font-size: 16px;background: rgb(255, 255, 255)">1. </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">轴承类型</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">（优先角接触球轴承，</span>DB/DF配对）；</span></p><p style="margin: 0 0 0 48px;padding: 0"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-weight: bold;font-size: 16px;background: rgb(255, 255, 255)">2. </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">精度等级</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">（</span>P4级以上）；</span></p><p style="margin: 0 0 0 48px;padding: 0"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-weight: bold;font-size: 16px;background: rgb(255, 255, 255)">3. </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">预紧与载荷匹配</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">；</span></span></p><p style="margin: 0 0 0 48px;padding: 0"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-weight: bold;font-size: 16px;background: rgb(255, 255, 255)">4. </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">安装与润滑优化</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">；</span></span></p><p style="margin: 0 0 0 48px;padding: 0"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-weight: bold;font-size: 16px;background: rgb(255, 255, 255)">5. </span><strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">特殊环境防护</span></span></strong><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 14px;background: rgb(255, 255, 255)"><span style="font-family:PingFang SC-Regular">（密封、耐腐蚀等）。</span></span></p><p style="margin-left: 0;text-indent: 0;padding: 0;background: rgb(255, 255, 255)"><span style="font-family: 'PingFang SC-Regular';color: rgb(27, 28, 33);letter-spacing: 1px;font-size: 15px"><span style="font-family:PingFang SC-Regular">建议结合</span>NACHI的《技术手册》和实际工况参数（如载荷、转速、精度要求）进行选型，必要时咨询厂商技术支持。</span></p><p><span style=";font-family:Calibri;font-size:14px"> </span></p><p><br/></p>