\u306d\u3058\u6709\u52b9\u5f84\u691c\u67fb<\/a> \u306b\u95a2\u3059\u308b\u8b70\u8ad6\u306f\u3001\u6570\u5024\u7684\u30c1\u30a7\u30c3\u30af\u3068\u6a5f\u80fd\u7684\u30c1\u30a7\u30c3\u30af\u3092\u4e92\u63db\u7684\u306b\u6271\u3046\u3079\u304d\u3067\u306a\u3044\u7406\u7531\u3092\u8aac\u660e\u3057\u3066\u3044\u308b\u3002.<\/p>\n![\"\u306d\u3058\u8c37\u5e95\u3068\u30d4\u30c3\u30c1\u306e\u691c\u67fb\"](\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/11\/thread-root-and-pitch-inspection.webp\")
<\/p>\n
\u90e8\u54c1\u30ea\u30d3\u30b8\u30e7\u30f3\u3001\u306d\u3058\u547c\u3073\u3001\u65b9\u6cd5\u3001\u304a\u3088\u3073\u5408\u5426\u57fa\u6e96\u3092\u7279\u5b9a\u3059\u308b\u691c\u67fb\u8a18\u9332\u3092\u8981\u6c42\u3059\u308b\u3002\u8c37\u5e95\u304c\u901a\u5e38\u306e\u30c1\u30a7\u30c3\u30af\u3067\u8a55\u4fa1\u3067\u304d\u306a\u3044\u5834\u5408\u3001\u30d0\u30c3\u30c1\u88fd\u9020\u524d\u306b\u8ffd\u52a0\u306e\u65b9\u6cd5\u3092\u89e3\u6c7a\u3059\u308b\u3002\u5fc5\u8981\u306a\u306e\u306f\u30c8\u30ec\u30fc\u30b5\u30d6\u30eb\u306a\u8a3c\u62e0\u3067\u3042\u308a\u3001\u306d\u3058\u3092\u691c\u67fb\u3057\u305f\u3068\u3044\u3046\u4e00\u822c\u7684\u306a\u8a18\u8ff0\u3067\u306f\u306a\u3044\u3002.<\/p>\n
\u4ee3\u66ff\u306e\u30ec\u30d3\u30e5\u30fc\u3092\u5b8c\u4e86\u3059\u308b<\/h2>\n
\u4ee3\u66ff\u54c1\u306e\u627f\u8a8d\u306f\u3001\u8cac\u4efb\u3042\u308b\u8a2d\u8a08\u6a29\u9650\u8005\u304c\u5d4c\u5408\u5f62\u72b6\u304a\u3088\u3073\u5143\u306e\u547c\u79f0\u304c\u62c5\u3063\u3066\u3044\u305f\u8981\u4ef6\u3092\u30ec\u30d3\u30e5\u30fc\u3057\u305f\u5f8c\u306b\u306e\u307f\u884c\u3046\u3002\u627f\u8a8d\u3055\u308c\u305f\u5909\u66f4\u3092\u7ba1\u7406\u6587\u66f8\u306b\u8a18\u9332\u3057\u3001\u8cfc\u8cb7\u3001\u88fd\u9020\u3001\u691c\u67fb\u306e\u3059\u3079\u3066\u304c\u540c\u3058\u5b9a\u7fa9\u3092\u4f7f\u7528\u3059\u308b\u3088\u3046\u306b\u3059\u308b\u3002.<\/p>\n
\u63d0\u6848\u304c\u300c\u540c\u3058\u5f84\u3001\u540c\u3058\u30d4\u30c3\u30c1\u3001\u305d\u3057\u3066\u306d\u3058\u8fbc\u3081\u308b\u300d\u3068\u3044\u3046\u307e\u307e\u3067\u3042\u308b\u306a\u3089\u3001\u30ec\u30d3\u30e5\u30fc\u306f\u4e0d\u5b8c\u5168\u3067\u3042\u308b\u3002\u3053\u308c\u3089\u306e\u89b3\u5bdf\u306f\u6709\u7528\u306a\u51fa\u767a\u70b9\u3067\u306f\u3042\u308b\u304c\u3001UNJ\u3068UN\u306e\u7b49\u4fa1\u6027\u3092\u7acb\u8a3c\u3059\u308b\u3082\u306e\u3067\u306f\u306a\u3044\u3002.<\/p>","protected":false},"excerpt":{"rendered":"
UNJ and UN threads can share a nominal diameter and pitch without being equivalent. The UNJ system includes a controlled external-thread root radius and corresponding mating-clearance requirements. A successful trial assembly is therefore not enough to approve a UN component as a replacement for a specified UNJ component. Check the complete callouts, applicable standards, mating geometry and inspection evidence before authorizing a substitution. This is a drawing-review problem as much as a machining problem. A purchasing description that retains only diameter and threads per inch can remove the very information that distinguishes the two thread systems. On this page The difference starts below the thread flanks Review the mating pair, […]<\/p>\n","protected":false},"author":1,"featured_media":3781,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3758","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/posts\/3758","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/comments?post=3758"}],"version-history":[{"count":6,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/posts\/3758\/revisions"}],"predecessor-version":[{"id":3784,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/posts\/3758\/revisions\/3784"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/media\/3781"}],"wp:attachment":[{"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/media?parent=3758"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/categories?post=3758"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ja\/wp-json\/wp\/v2\/tags?post=3758"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}