Know-how learned in machine design - Information dissemination site

Machine Designer's Note

: Summary of coupling selection and use

2020/5/2 coupling

Today's note is a summary of how to select and use couplings. I summarize the information necessary for selecting couplings, what to pay attention to, and my brain flowchart in the selection process. There are so many different types of couplings that it's hard to know how to select ...

: Information on general counterbore depths (dimensions) and processing methods for hexagon socket head bolts

2026/2/27 Screw/Bolt, Drawing/Writing

Today's memo is about "Common countersink depths (dimensions) and machining methods for socket head cap screws." There is a lot of this kind of dimensional information already available, but this article focuses on "common socket head cap screws...".

: Head Dimensions of Hexagon Socket Head Bolts and Hexagon Bolts [Comparison Table].

2024/3/13 Screw/Bolt

Today's memo is about "Comparison Chart of Hexagon Socket Head Size of Hexagon Socket Head Bolt and Hexagon Bolt". Head size of hexagon socket head cap screws / Hexagonal wrench application size grasp Hexagonal bolt head size / Spanner application size ...

: The Role of Drawings and Draftsmen's Awareness

2025/8/15 Drawing/Writing

Today's note is on "The Role of Drawings and the Draftsman's Awareness".　The other day, I gave a stern reminder to the young and new people with whom I work about the role of drawings and the awareness that drafters should have. To be precise, I scolded ...

: Cautions when using air cylinders in lifting operations

2025/10/19 Air Cylinder/Spicon, Design Information

Today I would like to share something about "Points to keep in mind when using air cylinders in a lifting motion" based on a recent case study that occurred. Lifting Lifting motion with air cylinders Using air cylinders for lifting motion ...

: Concept of separate and built-in controller for RoboCylinder

2024/9/28 Robo Cylinder /Single Axis Robot

Today's brief note is about "The concept of a separate controller and a built-in controller for robocylinders". Borrowed from IAI. RoboCylinder RoboCylinder Controller I ...

: What are UL Standards, a brief summary of UL Standards

2025/2/28 General Standards/Recognition

Today's note is a brief summary of what UL Standards are. The image is borrowed from UL's website UL Standard UL Standard is a standard of UL, a certification organization in the United States.

: List of Standard Dimensions for SS400 Flat Bar (Flat Steel/FB)

2025/10/13 Flat Bar /FB

Today's note is about "List of SS400 Flat Bar (Flat Steel and FB) Standard Dimensions". If you want to know the purchase dimensions of SS400 flat bar If you want to know the dimensional tolerances and other standards of SS400 flat bar Fla ...

: Hourly rates for mechanical design

2024/5/8 The story of machine design

Today I'm going to leave a note about the "market price per hour for mechanical design". This article is about my approach to the unit price of mechanical design (from basic to application), the actual unit price, and the price on Twitter and other social networking sites ....

: Explanation] Basic selection method and usage of solenoid valves

2025/8/3 Air Cylinder/Spicon

Here we note the "basic selection and use of solenoid valves". Selection of Solenoid Valves Difficulties in Solenoid Valve Selection First of all, a general interpretation of solenoid valves is that they are clearly ...

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