{"id":5415,"date":"2022-08-01T14:46:41","date_gmt":"2022-08-01T19:46:41","guid":{"rendered":"https:\/\/optimas.com\/?p=5415"},"modified":"2024-11-22T15:58:37","modified_gmt":"2024-11-22T21:58:37","slug":"optimas-parts-imperial-blog-series-technical-insight-into-hardened-and-unhardened-flat-washers","status":"publish","type":"post","link":"https:\/\/optimas.com\/ja\/optimas-parts-imperial-blog-series-technical-insight-into-hardened-and-unhardened-flat-washers\/","title":{"rendered":"Optimas Parts \u30a4\u30f3\u30da\u30ea\u30a2\u30eb \u30d6\u30ed\u30b0 \u30b7\u30ea\u30fc\u30ba: \u786c\u5316\u304a\u3088\u3073\u672a\u786c\u5316\u306e\u5e73\u30ef\u30c3\u30b7\u30e3\u30fc\u306b\u95a2\u3059\u308b\u6280\u8853\u7684\u6d1e\u5bdf"},"content":{"rendered":"

Optimas \u306f\u3001\u30d1\u30fc\u30c4 \u30a4\u30f3\u30da\u30ea\u30a2\u30eb \u30d6\u30ed\u30b0 \u30b7\u30ea\u30fc\u30ba\u3092\u4f5c\u6210\u3057\u3001\u4f7f\u7528\u3057\u3066\u3044\u308b\u30d5\u30a1\u30b9\u30ca\u30fc\u3068\u5fc5\u8981\u306a\u30d5\u30a1\u30b9\u30ca\u30fc\u306b\u95a2\u3059\u308b\u8a73\u7d30\u60c5\u5831\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002\u9069\u5207\u306a\u90e8\u54c1\u3092\u898b\u3064\u3051\u308b\u306e\u306b\u5f79\u7acb\u3064\u3088\u3046\u306b\u7cbe\u9078\u3055\u308c\u305f\u3053\u308c\u3089\u306e\u30c6\u30af\u30cb\u30ab\u30eb \u30ea\u30ea\u30fc\u30b9\u306f\u3001\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u4ed5\u69d8\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3001\u304a\u3088\u3073\u898f\u683c\u306b\u95a2\u3059\u308b\u60c5\u5831\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u3053\u306e\u30a4\u30f3\u30da\u30ea\u30a2\u30eb \u30b7\u30ea\u30fc\u30ba\u306f\u3001\u5e73\u5ea7\u91d1\u3001\u516d\u89d2\u7a74\u4ed8\u304d\u306d\u3058\u3001\u30ed\u30c3\u30af\u30ca\u30c3\u30c8\u3001\u5c0f\u306d\u3058\u3001\u30bf\u30c3\u30d4\u30f3\u30b0\u306d\u3058\u306e 5 \u7a2e\u985e\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u304a\u5ba2\u69d8\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u9069\u3057\u305f\u90e8\u54c1\u3092\u6c7a\u5b9a\u3059\u308b\u3068\u3001Optimas \u306f\u88fd\u9020\u304a\u3088\u3073\u6d41\u901a\u3092\u901a\u3058\u3066\u90e8\u54c1\u3092\u8abf\u9054\u3057\u3001\u5fc5\u8981\u306a\u90e8\u54c1\u3092\u78ba\u5b9f\u306b\u5165\u624b\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/span><\/span><\/p>\n

\u786c\u5316\u5e73\u30ef\u30c3\u30b7\u30e3\u30fc<\/h3>\n

\u786c\u5316\u5e73\u30ef\u30c3\u30b7\u30e3\u30fc\u306f\u3001\u30b0\u30ec\u30fc\u30c9 5 \u4ee5\u4e0a\u306e\u5f37\u5ea6\u306e\u30dc\u30eb\u30c8\u3092\u30d5\u30a1\u30b9\u30ca\u30fc\u306e\u5ea7\u9762\u3068\u305d\u308c\u304c\u53d6\u308a\u4ed8\u3051\u3089\u308c\u308b\u90e8\u54c1\u3068\u306e\u9593\u306b\u53d6\u308a\u4ed8\u3051\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u308c\u3089\u306f\u70ad\u7d20\u92fc\u3067\u3067\u304d\u3066\u304a\u308a\u3001Rc 38-45 \u307e\u3067\u8cab\u901a\u786c\u5316\u3059\u308b\u304b\u3001\u6700\u5c0f\u6df1\u3055 .015 \u30a4\u30f3\u30c1\u307e\u3067\u6d78\u70ad (\u6d78\u70ad) \u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u8868\u9762\u786c\u5ea6\u306f 37-45 Rc \u3067\u3001\u6700\u5c0f\u30b3\u30a2\u786c\u5ea6\u306f Rc 30 \u3067\u3059\u3002 .<\/p>\n

\u672a\u786c\u5316\u5e73\u30ef\u30c3\u30b7\u30e3\u30fc<\/h3>\n

\u786c\u5316\u3057\u3066\u3044\u306a\u3044\u5e73\u30ef\u30c3\u30b7\u30e3\u30fc\u306f\u3001\u30b0\u30ec\u30fc\u30c9 2 \u4ee5\u4e0b\u306e\u5f37\u5ea6\u306e\u30dc\u30eb\u30c8\u307e\u305f\u306f\u30bf\u30c3\u30d4\u30f3\u30b0 \u30b9\u30af\u30ea\u30e5\u30fc\u3092\u4f7f\u7528\u3057\u3066\u3001\u30d5\u30a1\u30b9\u30ca\u30fc\u306e\u5ea7\u9762\u3068\u305d\u308c\u304c\u53d6\u308a\u4ed8\u3051\u3089\u308c\u308b\u90e8\u54c1\u306e\u9593\u306b\u7d44\u307f\u7acb\u3066\u3089\u308c\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u5e45\u306e\u72ed\u3044 (SAE) \u304a\u3088\u3073\u5e45\u306e\u5e83\u3044 (USS) \u5e73\u30ef\u30c3\u30b7\u30e3\u30fc\u306f\u3001\u5fc5\u8981\u306a\u5916\u5f84\u306b\u5fdc\u3058\u3066\u4ed5\u69d8\u306b\u5fdc\u3058\u3066\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u786c\u5316\u304a\u3088\u3073\u672a\u786c\u5316\u306e\u5e73\u30ef\u30c3\u30b7\u30e3\u30fc\u306f\u3001\u6b21\u306e\u7528\u9014\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/h3>\n
    \n
  • \u5408\u308f\u305b\u9762\u306e\u5fdc\u529b\u5206\u5e03\u3092\u6539\u5584<\/li>\n
  • \u3088\u308a\u5927\u304d\u306a\u30af\u30ea\u30a2\u30e9\u30f3\u30b9 \u30db\u30fc\u30eb\u306b\u307e\u305f\u304c\u308b<\/li>\n
  • \u7d44\u307f\u7acb\u3066\u4e2d\u306b\u5408\u308f\u305b\u9762\u3092\u640d\u50b7\u304b\u3089\u4fdd\u8b77<\/li>\n
  • \u30c8\u30eb\u30af\u3092\u52a0\u3048\u308b\u305f\u3081\u306b\u3001\u5408\u308f\u305b\u9762\u9593\u306b\u4e00\u8cab\u3057\u305f\u30d9\u30a2\u30ea\u30f3\u30b0\u9762\u3092\u63d0\u4f9b\u3057\u307e\u3059<\/li>\n<\/ul>\n

    \u5bf8\u6cd5\u7279\u6027\u306f ANSI B18.22.1* \u3067\u30ab\u30d0\u30fc\u3055\u308c\u3001\u6a5f\u68b0\u7684\u7279\u6027\u306f ASTM F844 \u3067\u30ab\u30d0\u30fc\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

    \"\u786c\u5316\u3057\u305f\u5e73\u30ef\u30c3\u30b7\u30e3\u30fc\u306e\u4e0a\u9762\u56f3\u3068\u5074\u9762\u56f3\"<\/p>\n

    \u786c\u5316\u307e\u305f\u306f\u672a\u786c\u5316\u306e\u5e73\u5ea7\u91d1\u306e\u4e0a\u9762\u56f3\u3068\u5074\u9762\u56f3\u3002\u5bf8\u6cd5\u5c5e\u6027\u306f\u4e0b\u306e\u8868\u306b\u30ea\u30b9\u30c8\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

    \u786c\u5316\u5e73\u30ef\u30c3\u30b7\u30e3\u30fc\u4ed5\u69d8\u8868<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    \u516c\u79f0\u30b5\u30a4\u30ba**<\/strong>
    \n(\u30dc\u30eb\u30c8\u30b5\u30a4\u30ba)<\/th>\n    		\u3042<\/span>
    \n\u5185\u5f84<\/th>\n    		B<\/span>
    \n\u5916\u5f84<\/th>\n    		\u30cf<\/span>
    \n\u539a\u3055<\/th>\n<\/tr>\n<\/thead>\n
    <\/td>\nNOM<\/td>\n\u6700\u5c0f<\/td>\n\u6700\u5927<\/td>\nNOM<\/td>\n\u6700\u5c0f<\/td>\n\u6700\u5927<\/td>\n\u6700\u5c0f<\/td>\n\u6700\u5927<\/td>\n<\/tr>\n
    1\/4 (.250)<\/td>\n9\/32<\/td>\n.281<\/td>\n.312<\/td>\n5\/8<\/td>\n.594<\/td>\n.656<\/td>\n.051<\/td>\n.080<\/td>\n<\/tr>\n
    5\/16 (.312)<\/td>\n11\/32<\/td>\n.344<\/td>\n.375<\/td>\n11\/16<\/td>\n.657<\/td>\n.719<\/td>\n.051<\/td>\n.080<\/td>\n<\/tr>\n
    3\/8 (.375)<\/td>\n13\/32<\/td>\n.406<\/td>\n.437<\/td>\n13\/16<\/td>\n.781<\/td>\n.843<\/td>\n.051<\/td>\n.080<\/td>\n<\/tr>\n
    7\/16 (.438)<\/td>\n15\/32<\/td>\n.469<\/td>\n.500<\/td>\n59\/64<\/td>\n.891<\/td>\n.953<\/td>\n.051<\/td>\n.080<\/td>\n<\/tr>\n
    1\/2 (.500)<\/td>\n17\/32<\/td>\n.531<\/td>\n.562<\/td>\n1-1\/16<\/td>\n1.032<\/td>\n1.094<\/td>\n.097<\/td>\n.177<\/td>\n<\/tr>\n
    5\/8 (.625)<\/td>\n11\/16<\/td>\n.688<\/td>\n.719<\/td>\n1-5\/16<\/td>\n1.281<\/td>\n1.343<\/td>\n.122<\/td>\n.177<\/td>\n<\/tr>\n
    3\/4 (.750)<\/td>\n13\/16<\/td>\n.812<\/td>\n.843<\/td>\n1-15\/32<\/td>\n1.438<\/td>\n1.500<\/td>\n.122<\/td>\n.177<\/td>\n<\/tr>\n
    7\/8 (.875)<\/td>\n15\/16<\/td>\n.937<\/td>\n.968<\/td>\n1-3\/4<\/td>\n1.719<\/td>\n1.781<\/td>\n.136<\/td>\n.177<\/td>\n<\/tr>\n
    1 (1.000)<\/td>\n1-1\/8<\/td>\n1.125<\/td>\n1.156<\/td>\n2<\/td>\n1.969<\/td>\n2.031<\/td>\n.136<\/td>\n.177<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u203b\u8868\u4e2d\u306e\u30b5\u30a4\u30ba\u306f\u4e00\u822c\u7684\u306a\u30b5\u30a4\u30ba\u3067\u3059\u3002
    \n**\u3053\u308c\u3089\u306f\u4e00\u822c\u7684\u306a\u30a4\u30f3\u30c1\u5358\u4f4d\u306e\u5bf8\u6cd5\u3067\u3059\u3002<\/p>\n

    \u672a\u786c\u5316\u5e73\u30ef\u30c3\u30b7\u30e3\u30fc\u4ed5\u69d8\u8868<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    \u516c\u79f0\u30b5\u30a4\u30ba**<\/strong>
    \n(\u30dc\u30eb\u30c8\u30b5\u30a4\u30ba)<\/th>\n    		\u30b7\u30ea\u30fc\u30ba<\/th>\n\u3042<\/span>
    \n\u5185\u5f84<\/th>\n    		B<\/span>
    \n\u5916\u5f84<\/th>\n    		\u30cf<\/span>
    \n\u539a\u3055<\/th>\n<\/tr>\n<\/thead>\n
    <\/td>\n<\/td>\nNOM<\/td>\n\u6700\u5c0f<\/td>\n\u6700\u5927<\/td>\nNOM<\/td>\n\u6700\u5c0f<\/td>\n\u6700\u5927<\/td>\nNOM<\/td>\n\u6700\u5c0f<\/td>\n\u6700\u5927<\/td>\n<\/tr>\n
    #10 (.190)<\/td>\n\u72ed\u3044<\/td>\n7\/32<\/td>\n.214<\/td>\n.227<\/td>\n1\/2<\/td>\n.495<\/td>\n.515<\/td>\n3\/64<\/td>\n.036<\/td>\n.065<\/td>\n<\/tr>\n
    \u5e45<\/td>\n7\/32<\/td>\n.214<\/td>\n.227<\/td>\n1\/2<\/td>\n.495<\/td>\n.515<\/td>\n3\/64<\/td>\n.036<\/td>\n.065<\/td>\n<\/tr>\n
    #12 (.216)<\/td>\n\u72ed\u3044<\/td>\n1\/4<\/td>\n.245<\/td>\n.265<\/td>\n9\/16<\/td>\n.557<\/td>\n.577<\/td>\n1\/16<\/td>\n.051<\/td>\n.080<\/td>\n<\/tr>\n
    \u5e45<\/td>\n1\/4<\/td>\n.245<\/td>\n.265<\/td>\n9\/16<\/td>\n.557<\/td>\n.577<\/td>\n1\/16<\/td>\n.051<\/td>\n.080<\/td>\n<\/tr>\n
    1\/4 (.250)<\/td>\n\u72ed\u3044<\/td>\n9\/32<\/td>\n.276<\/td>\n.296<\/td>\n5\/8<\/td>\n.620<\/td>\n.640<\/td>\n1\/16<\/td>\n.051<\/td>\n.080<\/td>\n<\/tr>\n
    \u5e45<\/td>\n5\/16<\/td>\n.307<\/td>\n.327<\/td>\n3\/4<\/td>\n.727<\/td>\n.749<\/td>\n1\/16<\/td>\n.051<\/td>\n.080<\/td>\n<\/tr>\n
    5\/16 (.312)<\/td>\n\u72ed\u3044<\/td>\n11\/32<\/td>\n.339<\/td>\n.359<\/td>\n11\/16<\/td>\n.681<\/td>\n.703<\/td>\n1\/16<\/td>\n.051<\/td>\n.080<\/td>\n<\/tr>\n
    \u5e45<\/td>\n3\/8<\/td>\n.370<\/td>\n.390<\/td>\n7\/8<\/td>\n.868<\/td>\n.905<\/td>\n5\/64<\/td>\n.064<\/td>\n.104<\/td>\n<\/tr>\n
    3\/8 (.375)<\/td>\n\u72ed\u3044<\/td>\n13\/32<\/td>\n.401<\/td>\n.419<\/td>\n13\/16<\/td>\n.805<\/td>\n.827<\/td>\n1\/16<\/td>\n.051<\/td>\n.080<\/td>\n<\/tr>\n
    \u5e45<\/td>\n7\/16<\/td>\n.433<\/td>\n.453<\/td>\n1<\/td>\n.993<\/td>\n1.030<\/td>\n5\/64<\/td>\n.064<\/td>\n.104<\/td>\n<\/tr>\n
    7\/16 (.438)<\/td>\n\u72ed\u3044<\/td>\n15\/32<\/td>\n.464<\/td>\n.484<\/td>\n59\/64<\/td>\n.915<\/td>\n.937<\/td>\n1\/16<\/td>\n.051<\/td>\n.080<\/td>\n<\/tr>\n
    \u5e45<\/td>\n1\/2<\/td>\n.495<\/td>\n.515<\/td>\n1-1\/4<\/td>\n1.243<\/td>\n1.280<\/td>\n5\/64<\/td>\n.064<\/td>\n.104<\/td>\n<\/tr>\n
    1\/2 (.500)<\/td>\n\u72ed\u3044<\/td>\n17\/32<\/td>\n.526<\/td>\n.546<\/td>\n1-1\/16<\/td>\n1.055<\/td>\n1.092<\/td>\n3\/32<\/td>\n.074<\/td>\n.121<\/td>\n<\/tr>\n
    \u5e45<\/td>\n9\/16<\/td>\n.557<\/td>\n.577<\/td>\n1-3\/8<\/td>\n1.368<\/td>\n1.405<\/td>\n7\/64<\/td>\n.086<\/td>\n.132<\/td>\n<\/tr>\n
    5\/8 (.625)<\/td>\n\u72ed\u3044<\/td>\n21\/32<\/td>\n.649<\/td>\n.686<\/td>\n1-5\/16<\/td>\n1.305<\/td>\n1.342<\/td>\n3\/32<\/td>\n.074<\/td>\n.121<\/td>\n<\/tr>\n
    \u5e45<\/td>\n11\/16<\/td>\n.681<\/td>\n.718<\/td>\n1-3\/4<\/td>\n1.743<\/td>\n1.780<\/td>\n9\/64<\/td>\n.108<\/td>\n.160<\/td>\n<\/tr>\n
    3\/4 (.750)<\/td>\n\u72ed\u3044<\/td>\n13\/16<\/td>\n.805<\/td>\n.842<\/td>\n1-1\/2<\/td>\n1.462<\/td>\n1.499<\/td>\n9\/64<\/td>\n.108<\/td>\n.160<\/td>\n<\/tr>\n
    \u5e45<\/td>\n13\/16<\/td>\n.805<\/td>\n.842<\/td>\n2<\/td>\n1.993<\/td>\n2.030<\/td>\n5\/32<\/td>\n.122<\/td>\n.177<\/td>\n<\/tr>\n
    7\/8 (.875)<\/td>\n\u72ed\u3044<\/td>\n15\/16<\/td>\n.931<\/td>\n.968<\/td>\n1-3\/4<\/td>\n1.743<\/td>\n1.780<\/td>\n9\/64<\/td>\n.108<\/td>\n.160<\/td>\n<\/tr>\n
    \u5e45<\/td>\n15\/16<\/td>\n.931<\/td>\n.968<\/td>\n2-1\/4<\/td>\n2.243<\/td>\n2.280<\/td>\n11\/64<\/td>\n.136<\/td>\n.192<\/td>\n<\/tr>\n
    1 (1.00)<\/td>\n\u72ed\u3044<\/td>\n1-1\/16<\/td>\n1.055<\/td>\n1.092<\/td>\n2<\/td>\n1.993<\/td>\n2.030<\/td>\n9\/64<\/td>\n.108<\/td>\n.160<\/td>\n<\/tr>\n
    \u5e45<\/td>\n1-1\/16<\/td>\n1.055<\/td>\n1.092<\/td>\n2-1\/2<\/td>\n2.493<\/td>\n2.530<\/td>\n11\/64<\/td>\n.136<\/td>\n.192<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    *\u672a\u786c\u5316\u92fc\u30ef\u30c3\u30b7\u30e3\u30fc\u306e\u4e00\u822c\u7684\u306a\u5bf8\u6cd5\u306f\u30a4\u30f3\u30c1\u3067\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n

    \u6280\u8853\u76f8\u8ac7\u3092\u53d7\u3051\u308b<\/h3>\n

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