• 1.Design technology
    • 1-1.The story of machine design
    • 1-2.About Automation
    • 1-3.Factory System
      • Clean Room
      • Nut Runner
      • Stack transport
      • Galvano Scanner
      • About contamination
      • Forklift related
      • Crane related
      • About Factory power supply
    • Mechanical Design｜Basics
    • Trestle design
    • Jig design
    • Positioning foundation
    • Tolerance design
    • Input design
    • Welding knowledge
    • Analytical Strength｜CAE
    • Safety design
    • Explosion-proof design
    • Thermal measures
    • Air circuit
    • Production Technology/Manufacturing technology
    • Processing｜Foundation
    • CAD｜General
  • 2.Design calculations
    • Surface roughness ・ Surface roughness table
    • Cycle calculation
    • Habitual sex moments
    • Strength calculation
    • Basic calculation (Other)
  • 3.Mechanical elements
    • Motor
    • Air cylinder
    • Security
    • Electric Cylinder / Single Axis Robot
    • Index table
    • Linear Guide Shaft
    • Ball screw
    • Robot
    • Conveyor
    • Bearings ・ Bearings
    • Oiles Bush
    • Cable bear
    • Spring design
    • Shock absorbers
    • Chain
    • Sensor
    • Light curtain
    • Toggle clamp
    • Other Mechanical elements
  • 4. Table of various dimensions
    • Hex Socket Head cap Bolt
      • Screw-Zagli dimensions
      • Screw head dimensions
      • Trash-avoiding caps
    • Screw and tap materials
      • Screw Pitch Lead
      • Tap hole under dimension
      • In Helisat downhole
    • Dish fir dimensions
    • Spring/ Flat washer
      • Flat washer dimensions (New JIS, Old JIS)
      • Applications of flat washers
      • Application of Spring washer
    • Nuts
      • Hex Nut Dimensions
      • Types of nuts
    • Key-Keyway
      • Keyway dimension table
    • Parallel Pin-Knock pin
    • Piping screw
    • Tool dimensions
  • 5. Material Characteristics/Dimensions
    • Physical characteristics
    • Aluminum
    • Stainless steel
    • Resin
    • Rubber/Sponge
    • Flat bar
      • About Flat Bar
      • About Black Skin
      • SS400-FB
      • SUS304-FB
      • SUS303-FB
      • SUS316-FB
    • Round and square bars
      • Polished steel bar
      • Centerless round bar
    • Square pipe
      • SS400（STKR）
    • Equilateral angle iron (Angle)
      • SS400
    • Steel plate and wire mesh
      • Expanded metal
      • How to call Jishaku
    • Plumbing
    • Types of steel
  • 6.Heat treatment/surface treatment
    • 6-1. Surface treatment
    • 6-2.Heat treatment
    • 6-3.Painting
  • 7.Drafting knowledge
    • 7-1.What is mechanical Drawing?
    • 7-2. How to write a drawing
    • 7-3.How to do a drawing inspection

Know-how learned in machine design - Information dissemination site

Machine Designer's Note

  • 1.Design technology
    • 1-1.The story of machine design
    • 1-2.About Automation
    • 1-3.Factory System
      • Clean Room
      • Nut Runner
      • Stack transport
      • Galvano Scanner
      • About contamination
      • Forklift related
      • Crane related
      • About Factory power supply
    • Mechanical Design｜Basics
    • Trestle design
    • Jig design
    • Positioning foundation
    • Tolerance design
    • Input design
    • Welding knowledge
    • Analytical Strength｜CAE
    • Safety design
    • Explosion-proof design
    • Thermal measures
    • Air circuit
    • Production Technology/Manufacturing technology
    • Processing｜Foundation
    • CAD｜General
  • 2.Design calculations
    • Surface roughness ・ Surface roughness table
    • Cycle calculation
    • Habitual sex moments
    • Strength calculation
    • Basic calculation (Other)
  • 3.Mechanical elements
    • Motor
    • Air cylinder
    • Security
    • Electric Cylinder / Single Axis Robot
    • Index table
    • Linear Guide Shaft
    • Ball screw
    • Robot
    • Conveyor
    • Bearings ・ Bearings
    • Oiles Bush
    • Cable bear
    • Spring design
    • Shock absorbers
    • Chain
    • Sensor
    • Light curtain
    • Toggle clamp
    • Other Mechanical elements
  • 4. Table of various dimensions
    • Hex Socket Head cap Bolt
      • Screw-Zagli dimensions
      • Screw head dimensions
      • Trash-avoiding caps
    • Screw and tap materials
      • Screw Pitch Lead
      • Tap hole under dimension
      • In Helisat downhole
    • Dish fir dimensions
    • Spring/ Flat washer
      • Flat washer dimensions (New JIS, Old JIS)
      • Applications of flat washers
      • Application of Spring washer
    • Nuts
      • Hex Nut Dimensions
      • Types of nuts
    • Key-Keyway
      • Keyway dimension table
    • Parallel Pin-Knock pin
    • Piping screw
    • Tool dimensions
  • 5. Material Characteristics/Dimensions
    • Physical characteristics
    • Aluminum
    • Stainless steel
    • Resin
    • Rubber/Sponge
    • Flat bar
      • About Flat Bar
      • About Black Skin
      • SS400-FB
      • SUS304-FB
      • SUS303-FB
      • SUS316-FB
    • Round and square bars
      • Polished steel bar
      • Centerless round bar
    • Square pipe
      • SS400（STKR）
    • Equilateral angle iron (Angle)
      • SS400
    • Steel plate and wire mesh
      • Expanded metal
      • How to call Jishaku
    • Plumbing
    • Types of steel
  • 6.Heat treatment/surface treatment
    • 6-1. Surface treatment
    • 6-2.Heat treatment
    • 6-3.Painting
  • 7.Drafting knowledge
    • 7-1.What is mechanical Drawing?
    • 7-2. How to write a drawing
    • 7-3.How to do a drawing inspection
Image of PC screen in "working on strength analysis"

Introduction to CAE for Strength Analysis: Learn from the Basics to Avoid Failure

2025/9/24    Analytical Strength/CAE

  This page is a memo of "basic knowledge of strength analysis" in mechanical design. When I myself started learning strength analysis as a mechanical designer, I was not familiar with many technical terms and did not know where to start...

ゴムの切削加工ガイド｜設計者が知るべき材質・精度・金型との比較

2025/10/13    Rubber/Sponge, Machining/ Foundation

  ここでは　「ゴムの切削加工ガイドとして設計者が知るべき材質・精度・金型との比較」　についてのメモをしています。   機械設計者としてゴム部品の設計に携わる中で、「この形状は切削 ...

熱対称設計のイメージ図

熱対称構造を学ぶ！機械設計の精度向上ガイド

2025/11/16    Thermal measures

  ここでは、熱膨張対策の一つとなる　「熱対称構造」　についてのメモです。   機械の高精度化を追求する設計者にとって、熱による寸法変化や熱の影響で故障を誘発する原因を作ってしまう ...

ゴム硬さをデュロメータで測定している様子

ゴム硬さの選定ガイド｜JIS基準と目安を解説

2025/10/13    Rubber/Sponge

  ここでは　「ゴムの硬さと目安」　についてのメモをしています。   ゴム部品の設計をしていると必ず「硬さ」選定で迷います。　私は過去、カタログに並ぶ『A70』や『A90』といった ...

センタレス丸棒が並んでいる写真

センタレス丸棒とは？設計で使う材質・公差・規格を解説

2026/1/3    丸棒／角棒

  ここでは、一般に販売されている丸棒の　「センタレス丸棒」　についてのメモです。   私自身、シャフトなどの丸棒部品を設計するたびに、材料選定の壁（購入品を買うか、ミガキ材にする ...

Comparative Guide to Thread Standards: Metric, Unified, and Whitworth Differences

2025/9/8    Screw/Bolt, General Standards/Recognition

  ここでは　ねじの規格である　「メートル・ユニファイ・ウィットウォースの違い」についてのメモです。   機械設計では海外製の部品を設計に組み込んだり、輸入機械のメンテナンスを行っ ...

Image of "The coefficient of linear thermal expansion (α) is a physical property that indicates the rate of change in length per 1°C of temperature.

Coefficient of Linear Thermal Expansion (Coefficient of Linear Thermal Expansion)｜Basic Knowledge and Calculation Methods for Machine Design

2026/1/20    Heat treatment, Thermal measures, Physical characteristics

  ここでは　機械材料・治具材料　で注意するべき特性である　「線熱膨張係数一覧と機械設計に活かす基礎知識と計算方法」についてのメモです。   私もかつて、温度変化による部品の寸法変 ...

Actual image of "outer ring of rolling bearing fitted into housing

Tolerance and Surface Roughness Design of Bearing Mounting Area｜Complete Explanation of Key Points

2025/10/13    Bearing, Tolerance design

  ここでは　ベアリングの使い方　で最も重要となる　「ベアリング取付部のはめあい公差設計・面粗さ設計」　についてのメモです。   多くのWEBサイトでは、はめあい公差の基本について ...

転がり軸受と、オイレスベアリングが、同じ空間に並んでいる画像

ベアリングの種類と正しい使い方｜設計者が知るべき知識

2025/11/9    Oiles/ No Oil bush, Bearing, Design method

  ここでは　「ベアリングの種類と正しい使い方｜設計者が知るべき知識」というメモをしています。   私が機械設計者として歩み始めた頃、ベアリングの選定で（今もですが）幾度となく頭を ...

Image of steel being manufactured

Steel nomenclature by manufacturing method and steel nomenclature by application

2025/8/31    General Standards/Recognition

  ここでは　「製造法別の鋼材呼び方と用途別の鋼材の呼び方」　をメモしています。　（当ブログの検索用です）   鋼材（製造法別） 2000　鋼材（steel products） 圧 ...

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Engineer 48

  Active mechanical designer in Japan. I have been a mechanical designer for [21 years]. Currently. S-TEC It is a sole proprietor who works on various designs based on FA (Factory Automation) automatic machines under the shop name of "Factory Automation".

 Learn more about the Operator (S-TEC)
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  • 1] About Mechanical Design (71)
    • 　　[1-2] Design Methods/Design Techniques (25)
  • 【2】Machine calculation/ Strength calculation / Others (16)
  • [3] Tolerance design (4)
  • 4] Usage of Machine Elements/Calculations (145)
  • 【5】2DCAD／3DCAD／CAE (31)
  • 【6】 Material/ Material/ Processing/ Characteristics (63)
  • [7] Assembly drawing/ parts drawing/ writing (29)
  • [8] Production/Manufacturing/ Automation/ Mechanization (27)
  • [9] Processing related (12)
  • [A] JIS/Standard/Reference standard (13)
  • [B] Other Miscellaneous Notes (15)

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