• 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

How to obtain CAD data for THK grease nipples

2026/1/2    LM Guide/Linear Guide /Linear Shaft, Ball screw

Today's note is about "How to get CAD data for THK grease nipples". THK Grease Nipples If you download the CAD data for the LM Guide from THK's website, the grease nipples come with ...

Symbols "Ca" and "C0a" for load rating in THK's ball screw catalog

2024/1/20    Ball screw

今日は「THKのボールねじカタログにある定格荷重の記号「Ca」と「C0a」について」のメモです。この定格荷重の記号の説明がカタログの寸法表に載っていないので混乱する方も多いですのでここにメモしておきま ...

DCモーターとACモーターの違い。特徴の比較

2025/8/23    Motor

  ここでは　モーターの種類　である「DCモーターとACモーターの違い。特徴の比較」についてのメモです。   機械設計において駆動関係の選定をする際に、DC・ACどちらのモーターにしようか選 ...

Ball screw

ボールねじの与圧動トルク計算式

2024/1/20    Ball screw

今日は「 ボールねじの与圧動トルク計算式」についてのメモです。   ボールねじを利用した機械では、機械の種類によって精度の要求度合いが違うため、転造ボールねじでよい機械もあれば精密ボールねじ ...

Difference between prototype and mass production drawings

2025/8/15    Drawing/Writing

  Here is a note on the difference between prototype drawings and mass production drawings, which is mentioned in the article on mechanical drawing. As you may have experienced, after submitting a new part drawing, there are several inquiries from the machin...

Load calculation for bearings and bearings (driven by chain and belt)

2023/11/29    Chain, Bearing, ベルト

  今日は「ベアリング・軸受けへの負荷計算（チェーン・ベルトによる駆動）」についてのメモです。 ベアリングや軸受けへの負荷 今回記事に纏めるのは、コンベアの駆動などにおいてシャフトをベアリン ...

The story shows that hand-drawn drawings and drafting skills are necessary even if 3DCAD is widely used.

2025/8/15    Drawing/Writing

  Here is a memo that shows the importance of mechanical drafting knowledge: "Hand-drawn drawings and drafting skills are necessary even if 3DCAD is widely used. The other day I was on Twitter and saw a drafting lecture given by a student on hand-drawn ...

What is the spring constant? Why spring constants vary and tips to suppress variation.

2025/10/19    Spring, Design Information

  今日は「ばね定数とは何か。ばね定数がばらついてしまう理由とばらつきを押えるコツ」についてのメモです。圧縮スプリングを設計する際に出てくる「ばね定数」について、ばね定数の基本的な考え方と、 ...

下請けから脱却出来るマニュアル

2025/10/19    The story of machine design

  今日は「下請けから脱却出来るマニュアル」についてのメモです。タイトルの通り下請けを脱却するためのマニュアル本を紹介します。 下請け脱却マニュアル 僕は現在36歳。会社の繁栄（＝従業員皆の ...

Information about the drawing frames for mechanical design (with reference drawing frames and title columns)

2025/8/15    Drawing/Writing

  This section contains notes on "Information on Mechanical Design Drawing Frames" in mechanical drawing. The drawing frame of mechanical design Each company's drawing frame of mechanical design varies in expression while satisfying the standard (description rule), but the conventional paper ...

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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".

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  • 1] About Mechanical Design (71)
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  • 【5】2DCAD／3DCAD／CAE (31)
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  • [A] JIS/Standard/Reference standard (13)
  • [B] Other Miscellaneous Notes (15)

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