{"id":5801,"date":"2025-12-25T01:44:42","date_gmt":"2025-12-25T01:44:42","guid":{"rendered":"https:\/\/korea-transmission.com\/?p=5801"},"modified":"2025-12-25T01:44:42","modified_gmt":"2025-12-25T01:44:42","slug":"iso-metric-external-thread-minor-diameter-tolerances","status":"publish","type":"post","link":"https:\/\/korea-transmission.com\/ja\/blog\/iso-metric-external-thread-minor-diameter-tolerances\/","title":{"rendered":"ISO\u30e1\u30fc\u30c8\u30eb\u306d\u3058\u306e\u5916\u5f84\u516c\u5dee"},"content":{"rendered":"

\u5c0e\u5165<\/h2>\n
\n

\u30e1\u30fc\u30c8\u30eb\u306d\u3058\u306e\u5c0f\u5f84\u306fd\u3067\u8868\u3055\u308c\u308b\u30021<\/sub>\u306f\u3001\u306d\u3058\u5c71\u306e\u6839\u5143\u306b\u304a\u3051\u308b\u6700\u5c0f\u76f4\u5f84\u3092\u8868\u3057\u307e\u3059\u3002\u3053\u306e\u5bf8\u6cd5\u306e\u6b63\u78ba\u306a\u516c\u5dee\u306f\u3001\u306d\u3058\u8fbc\u307f\u30a2\u30bb\u30f3\u30d6\u30ea\u306e\u9069\u5207\u306a\u5d4c\u5408\u3001\u5f37\u5ea6\u3001\u304a\u3088\u3073\u6a5f\u80fd\u6027\u3092\u78ba\u4fdd\u3059\u308b\u4e0a\u3067\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002ISO\u898f\u683c\u306b\u3088\u308c\u3070\u3001\u516c\u5dee\u306f\u30d4\u30c3\u30c1\u3001\u516c\u79f0\u30b5\u30a4\u30ba\u3001\u304a\u3088\u3073\u516c\u5dee\u30af\u30e9\u30b9\uff08\u4f8b\uff1a6g\u30016h\uff09\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u30ac\u30a4\u30c9\u306f\u3001\u5927\u5f84\u3001\u30d4\u30c3\u30c1\u3001\u304a\u3088\u3073\u5c0f\u5f84\u306b\u95a2\u3059\u308b\u3088\u308a\u5e83\u7bc4\u306a\u8b70\u8ad6\u3092\u88dc\u8db3\u3057\u3001\u7279\u306b d \u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u30021<\/sub> \u8a31\u5bb9\u8aa4\u5dee\u3002<\/p>\n

\u3053\u308c\u3089\u306e\u516c\u5dee\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u81ea\u52d5\u8eca\u304b\u3089\u822a\u7a7a\u5b87\u5b99\u307e\u3067\u5e45\u5e83\u3044\u7528\u9014\u306b\u304a\u3044\u3066\u3001\u306d\u3058\u5c71\u306e\u7834\u640d\u3084\u7de9\u307f\u3068\u3044\u3063\u305f\u554f\u984c\u3092\u672a\u7136\u306b\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u3053\u306b\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\u30c7\u30fc\u30bf\u306f\u4fe1\u983c\u3067\u304d\u308b\u898f\u683c\u306b\u57fa\u3065\u3044\u3066\u304a\u308a\u3001\u8a2d\u8a08\u3068\u88fd\u9020\u306b\u304a\u3051\u308b\u7cbe\u5ea6\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n

\u30e1\u30fc\u30c8\u30eb\u306d\u3058\u306b\u304a\u3051\u308b\u5c0f\u5f84\u306e\u7406\u89e3<\/h2>\n
\n

\u30e1\u30fc\u30c8\u30eb\u306d\u3058\u3067\u306f\u3001\u5c0f\u5f84d1<\/sub> \u516c\u79f0\u76f4\u5f84\u304b\u3089\u306d\u3058\u9ad8\u3055\u306e2\u500d\u3092\u5f15\u3044\u305f\u5024\u3068\u3057\u3066\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002\u5916\u306d\u3058\u306e\u5834\u5408\u3001\u30b3\u30a2\u5f37\u5ea6\u3092\u6c7a\u5b9a\u3057\u3001\u5185\u306d\u3058\u3068\u306e\u5d4c\u5408\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u516c\u5dee\u306f3h\u304b\u30898g\u306a\u3069\u306e\u7b49\u7d1a\u3067\u6307\u5b9a\u3055\u308c\u3001\u6570\u5024\u304c\u5c0f\u3055\u3044\u307b\u3069\u5d4c\u5408\u304c\u304d\u3064\u304f\u306a\u308a\u3001\u6587\u5b57\u306f\u4f4d\u7f6e\u3092\u793a\u3057\u307e\u3059\uff08\u4f8b\uff1a\u300cg\u300d\u306f\u516c\u79f0\u5024\u3088\u308a\u5c0f\u3055\u3044\u8a31\u5bb9\u5024\uff09\u3002<\/p>\n

d\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u4e3b\u306a\u8981\u56e01<\/sub> \u8a31\u5bb9\u7bc4\u56f2\u306b\u306f\u4ee5\u4e0b\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n

    \n
  • \u306d\u3058\u30d4\u30c3\u30c1\uff08P\uff09\uff1a<\/strong> \u30d4\u30c3\u30c1\u304c\u7d30\u304b\u3044\u307b\u3069\u3001\u4e00\u822c\u7684\u306b\u8a31\u5bb9\u8aa4\u5dee\u7bc4\u56f2\u306f\u5c0f\u3055\u304f\u306a\u308b\u3002<\/li>\n
  • \u516c\u79f0\u76f4\u5f84\uff08d\uff09\uff1a<\/strong> \u76f4\u5f84\u304c\u5927\u304d\u3044\u307b\u3069\u3001\u88fd\u9020\u4e0a\u306e\u3070\u3089\u3064\u304d\u306b\u5bfe\u5fdc\u3059\u308b\u305f\u3081\u306e\u8a31\u5bb9\u8aa4\u5dee\u304c\u5927\u304d\u304f\u306a\u308b\u3002<\/li>\n
  • \u8a31\u5bb9\u30af\u30e9\u30b9:<\/strong> 6g\u306e\u3088\u3046\u306a\u7b49\u7d1a\u306f\u4e00\u822c\u7684\u306a\u7528\u9014\u306b\u3088\u304f\u7528\u3044\u3089\u308c\u308b\u4e00\u65b9\u30014h\u306f\u7cbe\u5bc6\u306a\u7528\u9014\u306b\u9069\u3057\u3066\u3044\u308b\u3002<\/li>\n<\/ul>\n

    \u9069\u5207\u306a\u8a31\u5bb9\u5dee\u30af\u30e9\u30b9\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3067\u3001ISO 965\u306e\u539f\u5247\u306b\u6e96\u62e0\u3057\u305f\u4e92\u63db\u6027\u3068\u6027\u80fd\u304c\u78ba\u4fdd\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/div>\n

    \u8a31\u5bb9\u7b49\u7d1a\u3068\u305d\u306e\u610f\u7fa9<\/h2>\n
    \n

    \u30e1\u30fc\u30c8\u30eb\u306d\u3058\u306e\u516c\u5dee\u7b49\u7d1a\u306f\u3001\u57fa\u672c\u504f\u5dee\u3068\u516c\u5dee\u5e2f\u306b\u3088\u3063\u3066\u5206\u985e\u3055\u308c\u307e\u3059\u3002\u5916\u5f84\u5c0f\u5f84\u306e\u5834\u5408\uff1a<\/p>\n

      \n
    1. 3\u5e74\u751f\uff5e5\u5e74\u751f\uff1a<\/strong> \u9ad8\u7cbe\u5ea6\u306a\u5d4c\u5408\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306b\u53b3\u3057\u3044\u516c\u5dee\u304c\u6c42\u3081\u3089\u308c\u3001\u8a08\u6e2c\u6a5f\u5668\u306a\u3069\u306b\u3088\u304f\u7528\u3044\u3089\u308c\u308b\u3002<\/li>\n
    2. 6\u5e74\u751fe\uff5e6\u5e74\u751fh\uff1a<\/strong> \u4e00\u822c\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u306b\u304a\u3051\u308b\u6a19\u6e96\u898f\u683c\u3067\u3042\u308a\u3001\u30b3\u30b9\u30c8\u3068\u6027\u80fd\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u53d6\u308b\u3002<\/li>\n
    3. 7e\uff5e8g\u30b0\u30ec\u30fc\u30c9\uff1a<\/strong> \u7d44\u307f\u7acb\u3066\u3084\u3059\u3055\u3092\u512a\u5148\u3059\u308b\u7528\u9014\u3067\u306f\u3001\u516c\u5dee\u3092\u7de9\u3081\u307e\u3059\u3002<\/li>\n<\/ol>\n

      \u5404\u30b0\u30ec\u30fc\u30c9\u3067\u306f\u3001d \u306e\u6700\u5927\u5024\u3068\u6700\u5c0f\u5024\u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u30021<\/sub>\u306d\u3058\u5c71\u306e\u6839\u5143\u304c\u7de0\u7d50\u5177\u306e\u5f37\u5ea6\u3092\u4f4e\u4e0b\u3055\u305b\u306a\u3044\u3088\u3046\u306b\u3057\u3064\u3064\u3001\u30e1\u30c3\u30ad\u3084\u30b3\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u65bd\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u9069\u5207\u306a\u30b0\u30ec\u30fc\u30c9\u306e\u9078\u629e\u306f\u3001\u8377\u91cd\u8981\u4ef6\u3001\u74b0\u5883\u8981\u56e0\u3001\u304a\u3088\u3073\u76f8\u624b\u306d\u3058\u306e\u516c\u5dee\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n

      \u4f8b\u3048\u3070\u3001\u632f\u52d5\u306e\u6fc0\u3057\u3044\u74b0\u5883\u3067\u306f\u30015H\u306e\u3088\u3046\u306a\u3088\u308a\u53b3\u3057\u3044\u30b0\u30ec\u30fc\u30c9\u3092\u7528\u3044\u308b\u3053\u3068\u3067\u30d0\u30c3\u30af\u30e9\u30c3\u30b7\u30e5\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3001\u4fe1\u983c\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n<\/div>\n

      \u5185\u5f84\u516c\u5dee\u306e\u8a08\u7b97\u65b9\u6cd5<\/h2>\n
      \n

      \u5185\u5f84\u516c\u5dee\u306e\u8a08\u7b97\u306fISO 965\u306e\u5f0f\u306b\u5f93\u3044\u307e\u3059\u3002\u57fa\u672c\u5185\u5f84d1<\/sub> \u6b21\u306e\u3088\u3046\u306b\u4e0e\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n

      d1<\/sub> = d \u2013 (2 \u00d7 H1<\/sub>)\u3001\u3053\u3053\u3067H1<\/sub> = (\u221a3 \/ 4) \u00d7 P (60\u00b0\u306d\u3058\u306e\u5834\u5408)\u3002<\/p>\n

      \u8a31\u5bb9\u5dee\u306f\u30af\u30e9\u30b9\u306b\u57fa\u3065\u3044\u3066\u8ffd\u52a0\u3055\u308c\u307e\u3059\u3002\u8a31\u5bb9\u5dee\u5e2fT\u306f\u4ee5\u4e0b\u304b\u3089\u5c0e\u304d\u51fa\u3055\u308c\u307e\u3059\u3002<\/p>\n

      T = 0.0015 \u00d7 d^{2\/3} \u00d7 P^{1\/3} (\u6210\u7e3e\u4fc2\u6570\u3067\u8abf\u6574)\u3002<\/p>\n

      \u57fa\u672c\u504f\u5dee\uff08es\u3001EI\uff09\u306b\u3088\u3063\u3066\u8a31\u5bb9\u8aa4\u5dee\u7bc4\u56f2\u304c\u6c7a\u5b9a\u3055\u308c\u307e\u3059\u3002\u5916\u90e8\u306d\u3058\u306e\u5834\u5408\u3001g\u306a\u3069\u306e\u30af\u30e9\u30b9\u3067\u306fes\u306f\u8ca0\u306e\u5024\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

      M10 \u00d7 1.5\u30016g\u30af\u30e9\u30b9\u306e\u8a08\u7b97\u4f8b\uff08\u30b9\u30c6\u30c3\u30d7\u30d0\u30a4\u30b9\u30c6\u30c3\u30d7\uff09\uff1a<\/p>\n

        \n
      1. \u516c\u79f0d = 10 mm\u3001P = 1.5 mm\u3002<\/li>\n
      2. \u57fa\u672c\u7684\u306ad1<\/sub> \u2248 10 \u2013 1.299 (H = 0.866 \u00d7 P \/ 2 \u00d7 2 \u304b\u3089) = 8.376 mm\u3002<\/li>\n
      3. 6g\u306e\u5834\u5408\u3001\u4e0a\u9650 = \u57fa\u672c\u5024 + es\u3001\u4e0b\u9650 = \u4e0a\u9650\u5024 - T (\u8868\u306e\u5024: \u6700\u5927 8.376\u3001\u6700\u5c0f 8.159 mm)\u3002<\/li>\n<\/ol>\n

        \u3053\u308c\u3089\u306e\u65b9\u6cd5\u306f\u898f\u683c\u3078\u306e\u6e96\u62e0\u3092\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u3067\u3042\u308a\u3001\u7cf8\u8a08\u7b97\u30c4\u30fc\u30eb\u306a\u3069\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30c4\u30fc\u30eb\u3092\u4f7f\u3048\u3070\u52b9\u7387\u5316\u306e\u305f\u3081\u306b\u81ea\u52d5\u5316\u3067\u304d\u308b\u3002<\/p>\n<\/div>\n

        \u8a73\u7d30\u516c\u5dee\u8868<\/h2>\n
        \n

        \u4ee5\u4e0b\u306e\u8868\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u516c\u79f0\u30b5\u30a4\u30ba\u3068\u30d4\u30c3\u30c1\u306b\u304a\u3051\u308b\u5916\u306d\u3058\u306e\u5c0f\u5f84\u306e\u6700\u5927\u5024\u3068\u6700\u5c0f\u5024\u3092\u30df\u30ea\u30e1\u30fc\u30c8\u30eb\u5358\u4f4d\u3067\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u30c7\u30fc\u30bf\u306f\u3001\u30af\u30e9\u30b93h\u304b\u30898g\u307e\u3067\u306e\u6a19\u6e96ISO\u516c\u5dee\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n\n\n\n\n
        \u8a31\u5bb9\u30af\u30e9\u30b9<\/th>\n\u5236\u9650<\/th>\nM1<\/th>\nM1.1<\/th>\n

        <\/p>\n

        		M300<\/th>\n<\/tr>\n
        0.25<\/td>\n0.2<\/td>\n0.25<\/td>\n0.2<\/td>\n

        <\/p>\n

        		…<\/td>\n…<\/td>\n…<\/td>\n<\/tr>\n<\/thead>\n
        3\u6642\u9593<\/td>\n\u30de\u30c3\u30af\u30b9<\/td>\n0.729<\/td>\n0.784<\/td>\n0.829<\/td>\n0.884<\/td>\n

        <\/tr>\n

        \u5206<\/td>\n0.693<\/td>\n0.755<\/td>\n0.793<\/td>\n0.855<\/td>\n

        <\/tr>\n

        <\/tbody>\n<\/table>\n

        \u6ce8\uff1a\u3053\u306e\u8868\u306f\u3001M1\u304b\u3089M300\u307e\u3067\u306e\u516c\u79f0\u76f4\u5f84\u3092\u7db2\u7f85\u3057\u3066\u304a\u308a\u3001\u5404\u30b5\u30a4\u30ba\u306b\u8907\u6570\u306e\u30d4\u30c3\u30c1\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u6b63\u78ba\u306a\u60c5\u5831\u306b\u3064\u3044\u3066\u306f\u3001ISO 965\u898f\u683c\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5f37\u8abf\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u884c\uff08\u4f8b\uff1a6g\uff09\u306f\u3001\u4e00\u822c\u7684\u306b\u4f7f\u7528\u3055\u308c\u308b\u30af\u30e9\u30b9\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n

        \u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n
        \n

        \u5916\u306d\u3058\u3068\u5185\u306d\u3058\u306e\u5c0f\u5f84\u516c\u5dee\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n

        \u5916\u306d\u3058\u306e\u5c0f\u5f84 (d1<\/sub>\uff09\u6839\u306e\u5f37\u5ea6\u306b\u91cd\u70b9\u3092\u7f6e\u304d\u3001\u30a2\u30f3\u30c0\u30fc\u30ab\u30c3\u30c8\u304c\u767a\u751f\u3057\u306a\u3044\u3088\u3046\u306b\u516c\u5dee\u3092\u8a2d\u3051\u3066\u3044\u307e\u3059\u3002\u5185\u306d\u3058\uff08D1<\/sub>\uff09ISO\u898f\u683c\u306b\u5f93\u3063\u3066\u3001\u591a\u304f\u306e\u5834\u5408\u7570\u306a\u308b\u504f\u5dee\u4f4d\u7f6e\u3067\u3001\u9802\u4e0a\u30af\u30ea\u30a2\u30e9\u30f3\u30b9\u3092\u5f37\u8abf\u3057\u307e\u3059\u3002<\/p>\n

        \u7528\u9014\u306b\u9069\u3057\u305f\u8a31\u5bb9\u8aa4\u5dee\u30af\u30e9\u30b9\u306f\u3069\u306e\u3088\u3046\u306b\u9078\u629e\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u304b\uff1f<\/h3>\n

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         <\/p>","protected":false},"excerpt":{"rendered":"

        Introduction The minor diameter of an external metric thread, denoted as d1, represents the smallest diameter at the root of the thread. Accurate tolerances for this dimension are critical in ensuring proper fit, strength, and functionality in threaded assemblies. According to ISO standards, tolerances vary by pitch, nominal size, and tolerance class (e.g., 6g, 6h). This guide supplements broader discussions on major, pitch, and minor diameters by delving specifically into d1 tolerances. Understanding these tolerances helps prevent issues like thread stripping or loose fits in applications ranging from automotive to aerospace. The data presented here is derived from reliable standards, ensuring precision in design and production. Understanding Minor Diameter in […]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[220],"tags":[],"class_list":["post-5801","post","type-post","status-publish","format-standard","hentry","category-technical-documentation-and-references"],"_links":{"self":[{"href":"https:\/\/korea-transmission.com\/ja\/wp-json\/wp\/v2\/posts\/5801","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/korea-transmission.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/korea-transmission.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/ja\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/ja\/wp-json\/wp\/v2\/comments?post=5801"}],"version-history":[{"count":1,"href":"https:\/\/korea-transmission.com\/ja\/wp-json\/wp\/v2\/posts\/5801\/revisions"}],"predecessor-version":[{"id":5802,"href":"https:\/\/korea-transmission.com\/ja\/wp-json\/wp\/v2\/posts\/5801\/revisions\/5802"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/ja\/wp-json\/wp\/v2\/media?parent=5801"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/korea-transmission.com\/ja\/wp-json\/wp\/v2\/categories?post=5801"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/ja\/wp-json\/wp\/v2\/tags?post=5801"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}