{"id":10948,"date":"2025-11-10T21:15:04","date_gmt":"2025-11-10T20:15:04","guid":{"rendered":"https:\/\/www.redhillballs.com\/?page_id=10948"},"modified":"2025-12-30T11:04:18","modified_gmt":"2025-12-30T10:04:18","slug":"%e6%bb%9a%e9%92%88-nra-%e7%90%83%e9%9d%a2%e7%ab%af","status":"publish","type":"page","link":"https:\/\/www.redhillballs.com\/zh-hans\/%e4%ba%a7%e5%93%81\/%e5%9c%86%e6%9f%b1%e6%bb%9a%e5%ad%90%e4%b8%8e%e6%bb%9a%e9%92%88\/%e6%bb%9a%e9%92%88-nra-%e7%90%83%e9%9d%a2%e7%ab%af\/","title":{"rendered":"\u6eda\u9488 NRA \u7403\u9762\u7aef"},"content":{"rendered":"<h2>\ud83d\udee0\ufe0f <a href=\"https:\/\/en.wikipedia.org\/wiki\/Needle_roller_bearing?utm_source=chatgpt.com\">\u6eda\u9488 NRA \u7403\u9762\u7aef\u2014\u2014\u7528\u4e8e\u7d27\u51d1\u9ad8\u8f7d\u7ec4\u4ef6\u7684\u5706\u7aef\u6eda\u9488<\/a><\/h2>\n<p>\u6eda\u9488 NRA 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\u7684\u5c3a\u5bf8\u4e0e\u7cbe\u5ea6\u7b49\u7ea7\u5236\u9020\u3002<\/li>\n<li><strong>\u6750\u6599<\/strong>\uff1a\u8f74\u627f\u94ec\u94a2 100Cr6\uff08AISI 52100\uff09\uff1b\u53ef\u6309\u9700\u63d0\u4f9b\u4e0d\u9508\u94a2\uff08AISI 420C\/440C\uff09\u4e0e\u6280\u672f\u9676\u74f7\/\u786c\u8d28\u5408\u91d1\u3002<\/li>\n<li><strong>\u786c\u5ea6\uff08AISI 52100\uff09<\/strong>\uff1a\u70ed\u5904\u7406\u540e\u7ea6 60\u201366 HRC\u3002<\/li>\n<li><strong>\u5178\u578b\u5c3a\u5bf8<\/strong>\uff1a\u76f4\u5f84 Dw \u2248 1.0\u20136.0 mm\uff1b\u957f\u5ea6 Lw \u2248 5.8\u201359.8 mm\uff08\u5176\u4ed6\u5c3a\u5bf8\u6309\u56fe\u7eb8\uff09\u3002<\/li>\n<li><strong>\u5178\u578b\u516c\u5dee<\/strong>\uff1a\u76f4\u5f84 0\/\u221210 \u00b5m\uff1b\u7cbe\u5ea6\u7b49\u7ea7 G2\u3001G3\u3001G5\uff08\u4f9d\u636e ISO 3096 \/ DIN 5402-3\uff09\u3002<\/li>\n<\/ul>\n<h3>\u2705 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