{"id":686,"date":"2026-09-18T03:44:55","date_gmt":"2026-09-18T03:44:55","guid":{"rendered":"https:\/\/htdpulley.top\/timing-pulley-runout-concentricity\/"},"modified":"2026-09-18T06:50:36","modified_gmt":"2026-09-18T06:50:36","slug":"timing-pulley-runout-concentricity","status":"publish","type":"post","link":"https:\/\/htdpulley.top\/ja\/timing-pulley-runout-concentricity\/","title":{"rendered":"\u30d7\u30fc\u30ea\u30fc\u306e\u632f\u308c\u3068\u540c\u5fc3\u5ea6\uff1a\u4f55\u3092\u898f\u5b9a\u3059\u3079\u304d\u304b"},"content":{"rendered":"<p class=\"htd-answer\"><strong>\u30d7\u30fc\u30ea\u30fc\u306e\u632f\u308c\u3068\u540c\u5fc3\u5ea6\uff1a\u4f55\u3092\u898f\u5b9a\u3059\u3079\u304d\u304b<\/strong> should be approached as a drive-system decision. The useful starting point is the mating belt and machine interface, followed by tooth count, working width, shaft mounting and duty conditions. This guide explains the checks that help an engineer or buyer turn timing pulley runout concentricity into an RFQ that can be verified against a catalogue row or drawing.<\/p>\n<nav aria-label=\"\u8a18\u4e8b\u306e\u5185\u5bb9\" class=\"htd-toc\"><strong>\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f<\/strong><a href=\"#start\">\u904b\u8ee2\u304b\u3089\u59cb\u3081\u307e\u3057\u3087\u3046<\/a><a href=\"#geometry\">\u5f62\u72b6\u3068\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9<\/a><a href=\"#application\">\u7533\u8acb\u66f8\u985e\u306e\u78ba\u8a8d<\/a><a href=\"#inspection\">\u70b9\u691c\u304a\u3088\u3073\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9<\/a><a href=\"#rfq\">\u898b\u7a4d\u4f9d\u983c\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/a><\/nav>\n<section id=\"start\">\n<h2>Establish the Drive Identity for Pulley Runout and Concentricity<\/h2>\n<p>For timing pulley runout concentricity, identify the complete belt marking before comparing pulley diameters. HTD is a curvilinear synchronous system and the nominal pitch must stay associated with its profile family. Record the driver and driven tooth counts when an existing ratio must be preserved. For a new drive, document the target speed ratio, driver speed and expected load before choosing tooth counts. This prevents a component-level decision from overriding the machine requirement.<\/p>\n<figure class=\"htd-figure\"><img alt=\"\u4ea4\u63a5\u30d9\u30eb\u30c8\u3068\u5fc5\u8981\u306a\u6bd4\u7387\u304b\u3089\u59cb\u3081\u307e\u3057\u3087\u3046\" class=\"htd-scene\" decoding=\"async\" loading=\"lazy\" src=\"http:\/\/htdpulley.top\/wp-content\/uploads\/2026\/09\/inspection-cmm-1.webp\"\/><\/figure>\n<p>\u4ea4\u63db\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u5834\u5408\u306f\u3001\u30ab\u30bf\u30ed\u30b0\u306e\u884c\u304c\u540c\u7b49\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3059\u308b\u524d\u306b\u3001\u6e2c\u5b9a\u5024\u3092\u65e2\u5b58\u306e\u30d9\u30eb\u30c8\u3068\u6a5f\u68b0\u306e\u914d\u7f6e\u3068\u6bd4\u8f03\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u65b0\u898f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u5834\u5408\u306f\u3001\u8a2d\u8a08\u57fa\u6e96\u3092\u6587\u66f8\u5316\u3057\u3001\u5f8c\u3005\u306e\u4fdd\u5b88\u30c1\u30fc\u30e0\u304c\u30d4\u30c3\u30c1\u3001\u6b6f\u6570\u3001\u53d6\u308a\u4ed8\u3051\u65b9\u5f0f\u304c\u9078\u629e\u3055\u308c\u305f\u7406\u7531\u3092\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/section>\n<section id=\"geometry\">\n<h2>Dimensions That Control Pulley Runout and Concentricity<\/h2>\n<p>\u30d7\u30fc\u30ea\u30fc\u306f\u30d4\u30c3\u30c1\u3068\u6b6f\u6570\u304c\u4e00\u81f4\u3057\u3066\u3044\u3066\u3082\u3001\u7a74\u5f84\u3001\u30cf\u30d6\u3001\u30d5\u30e9\u30f3\u30b8\u3001\u307e\u305f\u306f\u8ef8\u65b9\u5411\u306e\u4f4d\u7f6e\u304c\u7570\u306a\u308b\u3068\u3001\u6a5f\u68b0\u306b\u9069\u5408\u3057\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u30b7\u30e3\u30d5\u30c8\u3068\u306e\u63a5\u5408\u90e8\u3001\u30d9\u30eb\u30c8\u9762\u5e45\u3001\u4e21\u5074\u306e\u30cf\u30d6\u7a81\u51fa\u90e8\u3001\u304a\u3088\u3073\u5b89\u5b9a\u3057\u305f\u6a5f\u68b0\u57fa\u6e96\u9762\u306b\u5bfe\u3059\u308b\u30d9\u30eb\u30c8\u30e9\u30a4\u30f3\u3092\u6e2c\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30c6\u30fc\u30d1\u30fc\u30d6\u30c3\u30b7\u30e5\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f\u3001\u30d7\u30fc\u30ea\u30fc\u30b7\u30ea\u30fc\u30ba\u3068\u30d6\u30c3\u30b7\u30e5\u30b3\u30fc\u30c9\u306e\u4e21\u65b9\u3092\u8a18\u9332\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4ed5\u4e0a\u3052\u7a74\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u306f\u3081\u3042\u3044\u3001\u30ad\u30fc\u6e9d\u3001\u304a\u3088\u3073\u4fdd\u6301\u65b9\u6cd5\u3092\u56f3\u9762\u306b\u8a18\u5165\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<figure class=\"htd-figure\"><img alt=\"\u7d44\u307f\u7acb\u3066\u3092\u5236\u5fa1\u3059\u308b\u30d7\u30fc\u30ea\u30fc\u306e\u5f62\u72b6\u3092\u6349\u3048\u308b\" class=\"htd-tech-image\" decoding=\"async\" loading=\"lazy\" src=\"http:\/\/htdpulley.top\/wp-content\/uploads\/2026\/09\/tech-selection-1.webp\"\/><\/figure>\n<p>\u4ea4\u63db\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u5834\u5408\u306f\u3001\u30ab\u30bf\u30ed\u30b0\u306e\u884c\u304c\u540c\u7b49\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3059\u308b\u524d\u306b\u3001\u6e2c\u5b9a\u5024\u3092\u65e2\u5b58\u306e\u30d9\u30eb\u30c8\u3068\u6a5f\u68b0\u306e\u914d\u7f6e\u3068\u6bd4\u8f03\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u65b0\u898f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u5834\u5408\u306f\u3001\u8a2d\u8a08\u57fa\u6e96\u3092\u6587\u66f8\u5316\u3057\u3001\u5f8c\u3005\u306e\u4fdd\u5b88\u30c1\u30fc\u30e0\u304c\u30d4\u30c3\u30c1\u3001\u6b6f\u6570\u3001\u53d6\u308a\u4ed8\u3051\u65b9\u5f0f\u304c\u9078\u629e\u3055\u308c\u305f\u7406\u7531\u3092\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/section>\n<section id=\"application\">\n<h2>Put Pulley Runout and Concentricity in the Real Machine Context<\/h2>\n<p>The same nominal timing pulley runout concentricity component can see very different service depending on the machine. Starts per hour, reversing, shock loading, continuous operating time, temperature, contamination, cleaning and access for tensioning all influence the drive. A compact automation axis emphasizes repeatable motion and controlled alignment, while a conveyor or process machine may emphasize continuous duty and service access. Supply these conditions instead of asking the pulley to be selected from size alone.<\/p>\n<figure class=\"htd-figure\"><img alt=\"\u9078\u8003\u7d50\u679c\u3092\u8077\u52d9\u3068\u74b0\u5883\u306b\u7d50\u3073\u3064\u3051\u308b\" class=\"htd-scene\" decoding=\"async\" loading=\"lazy\" src=\"http:\/\/htdpulley.top\/wp-content\/uploads\/2026\/09\/inspection-finished-1.webp\"\/><\/figure>\n<p>\u4ea4\u63db\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u5834\u5408\u306f\u3001\u30ab\u30bf\u30ed\u30b0\u306e\u884c\u304c\u540c\u7b49\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3059\u308b\u524d\u306b\u3001\u6e2c\u5b9a\u5024\u3092\u65e2\u5b58\u306e\u30d9\u30eb\u30c8\u3068\u6a5f\u68b0\u306e\u914d\u7f6e\u3068\u6bd4\u8f03\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u65b0\u898f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u5834\u5408\u306f\u3001\u8a2d\u8a08\u57fa\u6e96\u3092\u6587\u66f8\u5316\u3057\u3001\u5f8c\u3005\u306e\u4fdd\u5b88\u30c1\u30fc\u30e0\u304c\u30d4\u30c3\u30c1\u3001\u6b6f\u6570\u3001\u53d6\u308a\u4ed8\u3051\u65b9\u5f0f\u304c\u9078\u629e\u3055\u308c\u305f\u7406\u7531\u3092\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/section>\n<section id=\"inspection\">\n<h2>Inspection Points for Pulley Runout and Concentricity<\/h2>\n<p>\u691c\u67fb\u306f\u3001\u99c6\u52d5\u90e8\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u5bf8\u6cd5\u3001\u3059\u306a\u308f\u3061\u3001\u30b7\u30e3\u30d5\u30c8\u306e\u63a5\u5408\u90e8\u3001\u8ef8\u65b9\u5411\u306e\u4f4d\u7f6e\u3001\u6b6f\u306e\u72b6\u614b\u3001\u6b6f\u5e45\u3001\u304a\u3088\u3073\u56f3\u9762\u3067\u898f\u5b9a\u3055\u308c\u305f\u632f\u308c\u3084\u57fa\u6e96\u70b9\u3068\u306e\u95a2\u4fc2\u306b\u91cd\u70b9\u3092\u7f6e\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4e00\u822c\u7684\u306a\u54c1\u8cea\u57fa\u6e96\u3067\u306f\u3001\u5408\u683c\u306e\u5b9a\u7fa9\u306f\u793a\u3055\u308c\u307e\u305b\u3093\u3002\u5bf8\u6cd5\u5831\u544a\u66f8\u3001\u6750\u6599\u6587\u66f8\u3001\u307e\u305f\u306f\u6ce8\u6587\u56fa\u6709\u306e\u8a18\u9332\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u88fd\u9020\u524d\u306b\u305d\u308c\u3089\u3092\u7279\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u4e2d\u306f\u3001\u30d5\u30e9\u30f3\u30b8\u306e\u640d\u50b7\u3001\u30a8\u30c3\u30b8\u306e\u6469\u8017\u3001\u7570\u7269\u3001\u304a\u3088\u3073\u30d7\u30fc\u30ea\u30fc\u304c\u30b7\u30e3\u30d5\u30c8\u4e0a\u3067\u79fb\u52d5\u3057\u305f\u75d5\u8de1\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<figure class=\"htd-figure\"><img alt=\"\u6a5f\u80fd\u7684\u30ea\u30b9\u30af\u306b\u95a2\u3059\u308b\u8a08\u753b\u691c\u67fb\" class=\"htd-scene\" decoding=\"async\" loading=\"lazy\" src=\"http:\/\/htdpulley.top\/wp-content\/uploads\/2026\/09\/factory-machining-1.webp\"\/><\/figure>\n<p>\u4ea4\u63db\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u5834\u5408\u306f\u3001\u30ab\u30bf\u30ed\u30b0\u306e\u884c\u304c\u540c\u7b49\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3059\u308b\u524d\u306b\u3001\u6e2c\u5b9a\u5024\u3092\u65e2\u5b58\u306e\u30d9\u30eb\u30c8\u3068\u6a5f\u68b0\u306e\u914d\u7f6e\u3068\u6bd4\u8f03\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u65b0\u898f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u5834\u5408\u306f\u3001\u8a2d\u8a08\u57fa\u6e96\u3092\u6587\u66f8\u5316\u3057\u3001\u5f8c\u3005\u306e\u4fdd\u5b88\u30c1\u30fc\u30e0\u304c\u30d4\u30c3\u30c1\u3001\u6b6f\u6570\u3001\u53d6\u308a\u4ed8\u3051\u65b9\u5f0f\u304c\u9078\u629e\u3055\u308c\u305f\u7406\u7531\u3092\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/section>\n<section>\n<h2>Questions to Resolve Before Selecting Pulley Runout and Concentricity<\/h2>\n<div class=\"htd-data-grid\">\n<article><strong>\u30d9\u30eb\u30c8\u306e\u8b58\u5225<\/strong><\/p>\n<p>\u5177\u4f53\u7684\u306b\u3069\u306e\u3088\u3046\u306aHTD\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3068\u5e45\u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u307e\u305f\u306f\u6307\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u304b\uff1f<\/p>\n<\/article>\n<article><strong>\u6b6f\u306e\u672c\u6570<\/strong><\/p>\n<p>\u3069\u306e\u7a0b\u5ea6\u306e\u6bd4\u7387\u3001\u3042\u308b\u3044\u306f\u65e2\u5b58\u306e\u6b6f\u306e\u672c\u6570\u3092\u7dad\u6301\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u304b\uff1f<\/p>\n<\/article>\n<article><strong>\u30b7\u30e3\u30d5\u30c8\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9<\/strong><\/p>\n<p>\u3069\u306e\u3088\u3046\u306a\u7a74\u5f84\u3001\u5d4c\u5408\u3001\u30ad\u30fc\u6e9d\u3001\u307e\u305f\u306f\u30c6\u30fc\u30d1\u30fc\u30d6\u30c3\u30b7\u30e5\u306e\u914d\u7f6e\u304c\u5fc5\u8981\u3067\u3059\u304b\uff1f<\/p>\n<\/article>\n<article><strong>\u8ef8\u65b9\u5411\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7<\/strong><\/p>\n<p>\u30cf\u30d6\u306e\u7a81\u51fa\u91cf\u3068\u30d5\u30e9\u30f3\u30b8\u306e\u30af\u30ea\u30a2\u30e9\u30f3\u30b9\u306f\u3069\u308c\u304f\u3089\u3044\u78ba\u4fdd\u3055\u308c\u3066\u3044\u307e\u3059\u304b\uff1f<\/p>\n<\/article>\n<article><strong>\u7fa9\u52d9<\/strong><\/p>\n<p>\u901f\u5ea6\u3001\u8ca0\u8377\u3001\u59cb\u52d5\u56de\u6570\u3001\u9006\u8ee2\u56de\u6570\u3001\u304a\u3088\u3073\u7a3c\u50cd\u6642\u9593\u306f\u3069\u308c\u304f\u3089\u3044\u3067\u3059\u304b\uff1f<\/p>\n<\/article>\n<article><strong>\u6587\u66f8<\/strong><\/p>\n<p>\u7d0d\u54c1\u7269\u306b\u306f\u3001\u3069\u306e\u56f3\u9762\u3001\u6750\u6599\u8a18\u9332\u3001\u307e\u305f\u306f\u691c\u67fb\u8a18\u9332\u3092\u6dfb\u4ed8\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u304b\uff1f<\/p>\n<\/article>\n<\/div>\n<\/section>\n<section>\n<h2>Drawing and Datum Strategy<\/h2>\n<p>When runout or concentricity matters, state the feature and datum relationship being controlled. A tolerance with no datum can be ambiguous. For repeat supply, keep the approved drawing revision and inspection requirement connected to the product identifier.<\/p>\n<p>\u7d50\u8ad6\u3092\u898b\u7a4d\u4f9d\u983c\u66f8\u307e\u305f\u306f\u56f3\u9762\u306b\u8a18\u9332\u3057\u3001\u540c\u3058\u6c7a\u5b9a\u4e8b\u9805\u304c\u8a2d\u8a08\u90e8\u9580\u3001\u8cfc\u8cb7\u90e8\u9580\u3001\u691c\u67fb\u90e8\u9580\u3067\u78ba\u8a8d\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/section>\n<section id=\"rfq\">\n<h2>\u898b\u7a4d\u4f9d\u983c\u66f8\u306b\u6dfb\u4ed8\u3059\u3079\u304d\u3082\u306e<\/h2>\n<p>\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3001\u6b6f\u6570\u3001\u30d9\u30eb\u30c8\u5e45\u3001\u30b7\u30e3\u30d5\u30c8\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3001\u30cf\u30d6\/\u30d5\u30e9\u30f3\u30b8\u306e\u8a73\u7d30\u3001\u6570\u91cf\u3001\u5b9b\u5148\u3001\u56f3\u9762\u307e\u305f\u306f\u4ea4\u63db\u6e2c\u5b9a\u30b9\u30b1\u30c3\u30c1\u3092\u9001\u4fe1\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u65b0\u3057\u3044\u30c9\u30e9\u30a4\u30d6\u306e\u5834\u5408\u306f\u3001\u901f\u5ea6\u3001\u6bd4\u7387\u3001\u8ca0\u8377\u3001\u4e2d\u5fc3\u8ddd\u96e2\u3001\u74b0\u5883\u3092\u8ffd\u52a0\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/htdpulley.top\/ja\/products\/\">HTD\u88fd\u54c1\u30d5\u30a1\u30df\u30ea\u30fc<\/a>\u4f7f\u7528\u3059\u308b <a href=\"https:\/\/htdpulley.top\/ja\/engineering\/htd-pulley-selection\/\">\u9078\u629e\u30ac\u30a4\u30c9<\/a>\u307e\u305f\u306f\u95a2\u9023\u3059\u308b\u3082\u306e\u3092\u6bd4\u8f03\u3059\u308b <a href=\"https:\/\/htdpulley.top\/ja\/applications\/\">\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ce\u30fc\u30c8<\/a>.<\/p>\n<p><a class=\"htd-btn htd-btn-primary\" href=\"#contact\">\u898b\u7a4d\u4f9d\u983c\u66f8\uff08RFQ\uff09\u3092\u6e96\u5099\u3059\u308b<\/a><\/section>\n<section>\n<h2>Specify Runout Only Where the Application Requires It<\/h2>\n<p>Do not publish one universal runout value for every HTD pulley. If the application has a functional limit, put the datum, measured feature and acceptable limit on the drawing or inspection requirement.<\/p>\n<p>\u6e2c\u5b9a\u5024\u3001\u30ab\u30bf\u30ed\u30b0\u53c2\u7167\u5024\u3001\u304a\u3088\u3073\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u8981\u4ef6\u306f\u660e\u78ba\u306b\u533a\u5225\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5fc5\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u304c\u95a2\u9023\u3059\u308b\u30ab\u30bf\u30ed\u30b0\u8868\u307e\u305f\u306f\u627f\u8a8d\u6e08\u307f\u56f3\u9762\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001\u59a5\u5f53\u3067\u306f\u3042\u308b\u3082\u306e\u306e\u691c\u8a3c\u3055\u308c\u3066\u3044\u306a\u3044\u5024\u3067\u4e0d\u8db3\u5206\u3092\u57cb\u3081\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u898b\u7a4d\u4f9d\u983c\u66f8\uff08RFQ\uff09\u306e\u8cea\u554f\u307e\u305f\u306f\u56f3\u9762\u8981\u4ef6\u3068\u3057\u3066\u542b\u3081\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/section>\n<section class=\"htd-soft-panel\">\n<h2>Measurement Method Matters<\/h2>\n<p>A runout result depends on how the part is mounted and what surface is referenced. Define the inspection setup when the value is critical so supplier and buyer are checking the same condition.<\/p>\n<p>\u8cfc\u5165\u8a18\u9332\u306b\u306f\u3001\u6a5f\u68b0\u306e\u8981\u4ef6\u3068\u9078\u629e\u3055\u308c\u305f\u30d7\u30fc\u30ea\u30fc\u3068\u306e\u660e\u78ba\u306a\u95a2\u9023\u6027\u3092\u8a18\u8f09\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u30d9\u30eb\u30c8\u307e\u305f\u306f\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306e\u5b8c\u5168\u306a\u8b58\u5225\u60c5\u5831\u3001\u6b6f\u6570\u3001\u6709\u52b9\u5e45\u3001\u304a\u3088\u3073\u30b7\u30e3\u30d5\u30c8\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u60c5\u5831\u304c\u88fd\u54c1\u30b3\u30fc\u30c9\u3068\u3068\u3082\u306b\u8a18\u9332\u3055\u308c\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u7279\u6b8a\u306a\u6750\u8cea\u3001\u4ed5\u4e0a\u3052\u3001\u516c\u5dee\u7ba1\u7406\u3001\u30de\u30fc\u30ad\u30f3\u30b0\u3001\u307e\u305f\u306f\u30ec\u30dd\u30fc\u30c8\u8981\u4ef6\u306f\u3001\u88fd\u54c1\u30d5\u30a1\u30df\u30ea\u30fc\u5168\u4f53\u306b\u5171\u901a\u3059\u308b\u7279\u5fb4\u3068\u8aa4\u89e3\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u3001\u500b\u5225\u306b\u8a18\u8f09\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/section>\n<section>\n<h2>\u8abf\u9054\u3068\u6587\u66f8\u5316<\/h2>\n<p>\u9078\u5b9a\u304c\u78ba\u5b9a\u3057\u305f\u3089\u3001\u627f\u8a8d\u3055\u308c\u305f\u88fd\u54c1\u540d\u3001\u6570\u91cf\u3001\u914d\u9001\u5148\u3001\u56f3\u9762\u6539\u8a02\u7248\u3092\u540c\u3058\u8cfc\u8cb7\u660e\u7d30\u884c\u306b\u8a18\u8f09\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u6a19\u6e96\u30ab\u30bf\u30ed\u30b0\u90e8\u54c1\u306f\u901a\u5e38\u3001\u751f\u7523\u6570\u91cf\u306e\u6700\u5c0f\u5024\u306b\u57fa\u3065\u3044\u3066\u8a08\u753b\u3055\u308c\u307e\u3059\u304c\u3001\u5927\u578b\u54c1\u3084\u9ad8\u984d\u54c1\u306f\u5b9f\u969b\u306e\u6ce8\u6587\u91d1\u984d\u306b\u57fa\u3065\u3044\u3066\u691c\u8a0e\u3067\u304d\u307e\u3059\u3002\u69cb\u6210\u3068\u88fd\u9020\u30eb\u30fc\u30c8\u304c\u9069\u5207\u306a\u5834\u5408\u3001\u65b0\u898f\u9867\u5ba2\u5411\u3051\u306e1\uff5e5\u500b\u306e\u30b5\u30f3\u30d7\u30eb\u306f\u30b5\u30f3\u30d7\u30eb\u4fa1\u683c\u3067\u691c\u8a0e\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u8907\u6570\u306e\u30e2\u30c7\u30eb\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u6ce8\u6587\u306f\u3001\u5b9f\u8cea\u7684\u306a\u6ce8\u6587\u91d1\u984d\u304c\u7d041,500\u7c73\u30c9\u30eb\u306b\u306a\u308b\u3088\u3046\u306b\u7d71\u5408\u3067\u304d\u307e\u3059\u3002\u7279\u6b8a\u306a\u6750\u6599\u3084\u7279\u6b8a\u306a\u5de5\u7a0b\u306b\u3064\u3044\u3066\u306f\u3001\u305d\u306e\u5de5\u7a0b\u3067\u5fc5\u8981\u3068\u3055\u308c\u308b\u6700\u5c0f\u6570\u91cf\u306b\u5f93\u3044\u307e\u3059\u3002\u3054\u304f\u5c11\u91cf\uff081\u500b\u307e\u305f\u306f2\u500b\uff09\u306e\u6ce8\u6587\u306f\u3001\u5c0f\u58f2\u4ea4\u63db\u6ce8\u6587\u3067\u306f\u306a\u304f\u3001\u9069\u683c\u306a\u6280\u8853\u691c\u8a3c\u307e\u305f\u306f\u6709\u6599\u30b5\u30f3\u30d7\u30eb\u3068\u3057\u3066\u306e\u307f\u51e6\u7406\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u7d0d\u671f\u306f\u6280\u8853\u7684\u306a\u5b9a\u7fa9\u304c\u660e\u78ba\u306b\u306a\u3063\u305f\u5f8c\u306b\u78ba\u5b9a\u3057\u307e\u3059\u3002\u6a19\u6e96\u90e8\u54c1\u306f\u901a\u5e3810\uff5e25\u55b6\u696d\u65e5\u3001\u30ab\u30b9\u30bf\u30e0\u90e8\u54c1\u306f20\uff5e45\u55b6\u696d\u65e5\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30d9\u30fc\u30b9\u306e\u7d44\u7acb\u54c1\u307e\u305f\u306f\u95a2\u9023\u6a5f\u5668\u306f\u8a72\u5f53\u3059\u308b\u5834\u540845\uff5e120\u55b6\u696d\u65e5\u3092\u4e88\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002EXW\u3001FOB\u3001CIF\u3001DAP\u306f\u4e00\u822c\u7684\u306b\u5bfe\u5fdc\u53ef\u80fd\u3067\u3059\u3002FCA\u3001CFR\u3001CPT\u3001CIP\u3001DDP\u306b\u3064\u3044\u3066\u306f\u3001\u9069\u5207\u306a\u51fa\u8377\u6761\u4ef6\u306b\u3064\u3044\u3066\u3054\u76f8\u8ac7\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3089\u306f\u3042\u304f\u307e\u3067\u4e88\u5b9a\u671f\u9593\u3067\u3042\u308a\u3001\u6ce8\u6587\u5185\u5bb9\u3092\u78ba\u8a8d\u3059\u308b\u524d\u306e\u51fa\u8377\u78ba\u7d04\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u306e\u3067\u3054\u6ce8\u610f\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/section>\n<section class=\"htd-soft-panel\">\n<h2>\u5b9f\u8df5\u7684\u306a\u610f\u601d\u6c7a\u5b9a\u306e\u624b\u9806<\/h2>\n<p>Start with measurement datum, shaft fit, hub condition and controlled runout requirement. Keep the machine requirement separate from the catalogue choice: first identify what the drive must preserve, then compare only the rows or drawings that match that identity. This keeps a familiar-looking pulley from being accepted before its functional interfaces have been checked.<\/p>\n<p>For an existing machine, preserve the original relationship before making changes. For a new design, record the target ratio, operating context and installation envelope so the runout review can be reviewed later without relying on memory or a photograph alone.<\/p>\n<\/section>\n<section class=\"htd-split\">\n<div>\n<h2>\u6e2c\u5b9a\u8a18\u9332\u3092\u4f5c\u6210\u3059\u308b<\/h2>\n<p>The most useful measurement set contains measurement method, datum, shaft\/hub fit, observed runout and required limit if controlled. Mark which values were measured on the machine and which values came from a catalogue or released drawing. When a feature is inaccessible, photograph its relationship to a stable datum and identify it as confirmation-required rather than filling the gap with an assumed value.<\/p>\n<p>\u5bf8\u6cd5\u56f3\u306f\u3001\u8aad\u307f\u3084\u3059\u3044\u6700\u5927\u5e45\u3067\u8868\u793a\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3092\u62e1\u5927\u7e2e\u5c0f\u3057\u3066\u3001\u305d\u306e\u62e1\u5927\u7e2e\u5c0f\u5f8c\u306e\u5bf8\u6cd5\u3092\u6e2c\u5b9a\u5024\u3068\u3057\u3066\u6271\u3046\u3053\u3068\u306f\u7d76\u5bfe\u306b\u907f\u3051\u3066\u304f\u3060\u3055\u3044\u3002\u5370\u5237\u3055\u308c\u305f\u5024\u3068\u9069\u5207\u306a\u65bd\u5de5\u65b9\u6cd5\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/div>\n<div><img src=\"http:\/\/htdpulley.top\/wp-content\/uploads\/2026\/09\/tech-dimension-1.webp\" alt=\"HTD pulley dimension reference for runout and concentricity review\" class=\"htd-tech-image\" loading=\"lazy\" decoding=\"async\"><\/div>\n<\/section>\n<section>\n<h2>\u907f\u3051\u308b\u3079\u304d\u6545\u969c\u30e2\u30fc\u30c9\u304c1\u3064<\/h2>\n<p>A common error is quoting a universal runout value without a drawing or equipment requirement. That can produce a part that appears close in the catalogue yet changes ratio, belt line, mounting or service access. Resolve the conflicting feature before requesting price so the quotation refers to one mechanically coherent configuration.<\/p>\n<p>2\u3064\u306e\u69cb\u6210\u6848\u304c\u8003\u3048\u3089\u308c\u308b\u5834\u5408\u306f\u3001\u6a5f\u68b0\u306e\u5bf8\u6cd5\u3068\u5199\u771f\u3001\u305d\u3057\u3066\u5e0c\u671b\u3059\u308b\u69cb\u6210\u6848\u306e\u4e21\u65b9\u3092\u304a\u9001\u308a\u304f\u3060\u3055\u3044\u3002\u305d\u3046\u3059\u308b\u3053\u3068\u3067\u3001\u898b\u7a4d\u3082\u308a\u62c5\u5f53\u8005\u306f\u3001\u4e0d\u78ba\u5b9f\u6027\u3092\u4ed5\u69d8\u306b\u305d\u306e\u307e\u307e\u53cd\u6620\u3055\u305b\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u3069\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u78ba\u8a8d\u304c\u5fc5\u8981\u304b\u3092\u660e\u78ba\u306b\u7279\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/section>\n<section class=\"htd-soft-panel\">\n<h2>\u6280\u8853\u7684\u306a\u9078\u629e\u3092\u3001\u898b\u7a4d\u3082\u308a\u4f5c\u6210\u53ef\u80fd\u306a\u9805\u76ee\u306b\u5909\u63db\u3059\u308b<\/h2>\n<div class=\"htd-data-grid\">\n<article><strong>\u8eab\u5143<\/strong><\/p>\n<p>HTD\/\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u30d5\u30a1\u30df\u30ea\u30fc\u3068\u30d9\u30eb\u30c8\u306b\u95a2\u3059\u308b\u8a73\u7d30\u60c5\u5831\u3092\u660e\u8a18\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/article>\n<article><strong>\u5e7e\u4f55\u5b66<\/strong><\/p>\n<p>\u6b6f\u6570\u3001\u6709\u52b9\u5e45\u3001\u304a\u3088\u3073\u95a2\u9023\u3059\u308b\u5bf8\u6cd5\u307e\u305f\u306f\u56f3\u9762\u53c2\u7167\u3092\u63d0\u4f9b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/article>\n<article><strong>\u53d6\u308a\u4ed8\u3051<\/strong><\/p>\n<p>\u8a72\u5f53\u3059\u308b\u5834\u5408\u306f\u3001\u7a74\u307e\u305f\u306f\u30d6\u30c3\u30b7\u30e5\u3001\u30b7\u30e3\u30d5\u30c8\u30c7\u30fc\u30bf\u3001\u30cf\u30d6\u7a81\u51fa\u91cf\u3001\u304a\u3088\u3073\u30d9\u30eb\u30c8\u30e9\u30a4\u30f3\u4f4d\u7f6e\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002<\/p>\n<\/article>\n<article><strong>\u5546\u7528\u30e9\u30a4\u30f3<\/strong><\/p>\n<p>\u6570\u91cf\u3001\u914d\u9001\u5148\u3001\u5fc5\u8981\u66f8\u985e\u3001\u304a\u3088\u3073\u4f9d\u983c\u306b\u4f7f\u7528\u3057\u305f\u56f3\u9762\u306e\u6539\u8a02\u7248\u3092\u8ffd\u52a0\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/article>\n<\/div>\n<p>\u4e0a\u8a18\u9805\u76ee\u306e\u3046\u3061\u3001\u771f\u306b\u4e0d\u660e\u306a\u9805\u76ee\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u78ba\u8a8d\u306e\u305f\u3081\u306b\u305d\u306e\u65e8\u3092\u660e\u8a18\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u6e2c\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u53ef\u80fd\u6027\u306e\u3042\u308b\u5024\u3088\u308a\u3082\u3001\u660e\u78ba\u306a\u672a\u89e3\u6c7a\u306e\u7591\u554f\u306e\u65b9\u304c\u306f\u308b\u304b\u306b\u6709\u7528\u3067\u3059\u3002<\/p>\n<\/section>\n<section>\n<h2>\u8cfc\u5165\u8005\u304c\u3088\u304f\u5c0b\u306d\u308b\u8cea\u554f<\/h2>\n<div class=\"htd-faq\">\n<details>\n<summary>\u307e\u305a\u6700\u521d\u306b\u78ba\u8a8d\u3059\u3079\u304d\u3053\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/summary>\n<p>Confirm measurement datum, shaft fit, hub condition and controlled runout requirement. That prevents later dimensions from being compared across the wrong product family or installation route.<\/p>\n<\/details>\n<details>\n<summary>\u4ea4\u63db\u90e8\u54c1\u3092\u63a2\u3059\u4e0a\u3067\u6700\u3082\u5f79\u7acb\u3064\u60c5\u5831\u306f\u4f55\u3067\u3059\u304b\uff1f<\/summary>\n<p>Send measurement method, datum, shaft\/hub fit, observed runout and required limit if controlled, plus clear photographs before the old pulley is removed. The photographs preserve axial orientation and neighboring clearances that a loose part cannot show.<\/p>\n<\/details>\n<details>\n<summary>\u56f3\u9762\u306f\u3069\u306e\u3088\u3046\u306a\u5834\u5408\u306b\u4f7f\u7528\u3059\u3079\u304d\u3067\u3057\u3087\u3046\u304b\uff1f<\/summary>\n<p>\u30ab\u30bf\u30ed\u30b0\u306e\u8a18\u8f09\u5185\u5bb9\u3067\u3001\u6a5f\u68b0\u306b\u3068\u3063\u3066\u91cd\u8981\u306a\u30b7\u30e3\u30d5\u30c8\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3001\u30cf\u30d6\uff0f\u30d5\u30e9\u30f3\u30b8\u914d\u7f6e\u3001\u4ed5\u4e0a\u3052\u3001\u516c\u5dee\u3001\u307e\u305f\u306f\u691c\u67fb\u8981\u4ef6\u304c\u5b8c\u5168\u306b\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001\u5fc5\u305a\u7ba1\u7406\u56f3\u9762\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/details>\n<\/div>\n<\/section>\n<section>\n<h2>\u30d7\u30fc\u30ea\u30fc\u3092\u4ea4\u63db\u3059\u308b\u524d\u306b\u30b7\u30b9\u30c6\u30e0\u3092\u8a3a\u65ad\u3057\u3066\u304f\u3060\u3055\u3044<\/h2>\n<p>\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u3001\u30a8\u30c3\u30b8\u6469\u8017\u3001\u7570\u97f3\u3001\u307e\u305f\u306f\u30d9\u30eb\u30c8\u306e\u7e70\u308a\u8fd4\u3057\u640d\u50b7\u306b\u306f\u3001\u8907\u6570\u306e\u539f\u56e0\u304c\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u65b0\u3057\u3044\u30d7\u30fc\u30ea\u30fc\u3092\u6ce8\u6587\u3059\u308b\u524d\u306b\u3001\u30a2\u30e9\u30a4\u30e1\u30f3\u30c8\u3001\u30b7\u30e3\u30d5\u30c8\u3068\u30d9\u30a2\u30ea\u30f3\u30b0\u306e\u72b6\u614b\u3001\u53d6\u308a\u4ed8\u3051\u306e\u5b89\u5b9a\u6027\u3001\u30d9\u30eb\u30c8\u306e\u72b6\u614b\u3001\u6c5a\u67d3\u306e\u6709\u7121\u3001\u304a\u3088\u3073\u30d5\u30e9\u30f3\u30b8\u306b\u5bfe\u3059\u308b\u30d9\u30eb\u30c8\u306e\u4f4d\u7f6e\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30d7\u30fc\u30ea\u30fc\u306b\u76ee\u306b\u898b\u3048\u308b\u75c7\u72b6\u304c\u3042\u308b\u304b\u3089\u3068\u3044\u3063\u3066\u3001\u30d7\u30fc\u30ea\u30fc\u306e\u5f62\u72b6\u304c\u6839\u672c\u539f\u56e0\u3067\u3042\u308b\u3068\u306f\u65ad\u5b9a\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>\u4ea4\u63db\u4f5c\u696d\u3092\u884c\u3046\u969b\u306f\u3001\u307e\u305a\u53d6\u308a\u4ed8\u3051\u72b6\u614b\u3092\u8a18\u9332\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30d7\u30fc\u30ea\u30fc\u306e\u4e21\u9762\u3068\u30d9\u30eb\u30c8\u306e\u7d4c\u8def\u3092\u5199\u771f\u306b\u64ae\u308a\u3001\u30d9\u30eb\u30c8\u306e\u30de\u30fc\u30ad\u30f3\u30b0\u3068\u6b6f\u6570\u3092\u8a18\u9332\u3057\u3001\u75c7\u72b6\u304c\u8ca0\u8377\u6642\u3001\u53cd\u8ee2\u6642\u3001\u307e\u305f\u306f\u6696\u6a5f\u5f8c\u306b\u73fe\u308c\u308b\u304b\u3069\u3046\u304b\u3092\u30e1\u30e2\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3089\u306e\u89b3\u5bdf\u7d50\u679c\u306b\u3088\u308a\u3001\u53d6\u308a\u4ed8\u3051\u306e\u554f\u984c\u3068\u6469\u8017\u307e\u305f\u306f\u4e0d\u9069\u5207\u306a\u90e8\u54c1\u3068\u3092\u533a\u5225\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/section>\n<section class=\"htd-soft-panel\">\n<h2>\u767a\u898b\u3057\u305f\u4e8b\u5b9f\u3092\u7ba1\u7406\u3055\u308c\u305f\u4fee\u7406\u306b\u3064\u306a\u3052\u308b<\/h2>\n<p>\u30d7\u30fc\u30ea\u30fc\u3092\u4ea4\u63db\u3059\u308b\u5834\u5408\u306f\u3001\u627f\u8a8d\u3055\u308c\u305f\u30e2\u30c7\u30eb\u307e\u305f\u306f\u56f3\u9762\u306e\u6539\u8a02\u7248\u3092\u4fdd\u5b88\u8a18\u9332\u3068\u3068\u3082\u306b\u4fdd\u7ba1\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4fee\u7406\u4e2d\u306b\u5b9f\u65bd\u3057\u305f\u30b7\u30e3\u30d5\u30c8\u307e\u305f\u306f\u30cf\u30d6\u306e\u6a5f\u68b0\u52a0\u5de5\u3092\u8a18\u9332\u3057\u3001\u6b21\u56de\u306e\u4ea4\u63db\u6642\u306b\u5143\u306e\u30ab\u30bf\u30ed\u30b0\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u304c\u307e\u3060\u5b58\u5728\u3059\u308b\u3068\u60f3\u5b9a\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u632f\u308c\u3084\u5bf8\u6cd5\u7279\u6027\u304c\u6a5f\u80fd\u7684\u306b\u91cd\u8981\u306a\u5834\u5408\u306f\u3001\u4fee\u7406\u56f3\u9762\u307e\u305f\u306f\u8cfc\u5165\u8981\u4ef6\u306b\u6e2c\u5b9a\u57fa\u6e96\u5024\u3068\u8a31\u5bb9\u5024\u3092\u660e\u8a18\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u53d6\u308a\u4ed8\u3051\u5f8c\u3001\u6a5f\u68b0\u3092\u901a\u5e38\u904b\u8ee2\u306b\u623b\u3059\u524d\u306b\u3001\u30d9\u30eb\u30c8\u30e9\u30a4\u30f3\u3068\u99c6\u52d5\u90e8\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u76ee\u7684\u306f\u5358\u306b\u65b0\u3057\u3044\u90e8\u54c1\u3092\u53d6\u308a\u4ed8\u3051\u308b\u3053\u3068\u3067\u306f\u306a\u304f\u3001\u8ffd\u8de1\u53ef\u80fd\u3067\u4fdd\u5b88\u53ef\u80fd\u306a\u99c6\u52d5\u69cb\u6210\u3092\u5fa9\u5143\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n<\/section>\n<section class=\"htd-applied-guide\">\n<h2>Specify Runout Only From a Defined Datum and Functional Need<\/h2>\n<p>Runout and concentricity are meaningful only when the measured surface, datum and inspection method are defined. A blanket \u201chigh precision\u201d requirement is not actionable. If radial or axial runout matters to the machine, identify the shaft\/bore datum and the surface to be checked on the drawing, then state the acceptance value required by the project.<\/p>\n<p>For replacement investigation, first determine whether apparent pulley wobble comes from the pulley, the shaft, the mounting interface or accumulated debris. Inspect the bore or bush and shaft condition, then check the pulley from a repeatable setup. A damaged shaft or loose bush can produce motion that would be misdiagnosed if only the outer rim is observed while running.<\/p>\n<p>Catalogue dimensions remain the component reference, while project-specific inspection limits belong to the order drawing. Keeping these roles separate avoids publishing a universal tolerance that may not apply across materials, diameters or construction types.<\/p>\n<\/section>\n<section class=\"htd-applied-guide\">\n<h2>Define Runout by Datum, Location and Measurement Method<\/h2>\n<p>Runout and concentricity are meaningful only when the measurement reference is clear. A buyer who needs a controlled value should identify the datum\u2014such as a finished bore or another drawing-defined surface\u2014the feature being checked and the measurement method. A generic \u201chigh precision\u201d note is not an inspectable requirement.<\/p>\n<p>Field measurements on a worn assembly can be influenced by shaft condition, bearing play, debris or mounting error. Before attributing measured runout to the pulley itself, inspect those factors and record the test setup. If a specific acceptance value is required, it should come from the machine design, component drawing or agreed order requirement.<\/p>\n<div class=\"htd-data-grid\">\n<article><strong>Datum<\/strong><\/p>\n<p>State the surface or axis from which the measurement is referenced.<\/p>\n<\/article>\n<article><strong>Feature<\/strong><\/p>\n<p>Identify the diameter, face or belt-running surface being checked.<\/p>\n<\/article>\n<article><strong>\u65b9\u6cd5<\/strong><\/p>\n<p>Describe indicator position or inspection method when the result is order-critical.<\/p>\n<\/article>\n<article><strong>Limit<\/strong><\/p>\n<p>Put the accepted value on the drawing or RFQ instead of using a universal website claim.<\/p>\n<\/article>\n<\/div>\n<p>For replacement troubleshooting, compare the old and new components on the same shaft or controlled fixture where practical. This makes the result more useful than two measurements taken from different setups.<\/p>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>  Pulley Runout and Concentricity: What to Specify  should be approached as a drive-system decision. The useful starting point is the mating belt and machine interface, followed by tooth count, working width, shaft mounting and duty conditions. This guide expl<\/p>","protected":false},"author":1,"featured_media":735,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1646],"tags":[],"class_list":["post-686","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical-guides"],"_links":{"self":[{"href":"https:\/\/htdpulley.top\/ja\/wp-json\/wp\/v2\/posts\/686","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/htdpulley.top\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/htdpulley.top\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/htdpulley.top\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/htdpulley.top\/ja\/wp-json\/wp\/v2\/comments?post=686"}],"version-history":[{"count":1,"href":"https:\/\/htdpulley.top\/ja\/wp-json\/wp\/v2\/posts\/686\/revisions"}],"predecessor-version":[{"id":873,"href":"https:\/\/htdpulley.top\/ja\/wp-json\/wp\/v2\/posts\/686\/revisions\/873"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/htdpulley.top\/ja\/wp-json\/wp\/v2\/media\/735"}],"wp:attachment":[{"href":"https:\/\/htdpulley.top\/ja\/wp-json\/wp\/v2\/media?parent=686"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/htdpulley.top\/ja\/wp-json\/wp\/v2\/categories?post=686"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/htdpulley.top\/ja\/wp-json\/wp\/v2\/tags?post=686"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}