ENGINEER.48

  Here is a note on the difference between Metric, Unified, and Whitworth thread standards. In mechanical design, we incorporate foreign-made parts into our designs and perform maintenance on imported machinery ...

  Here, I would like to make a note on "List of coefficients of linear thermal expansion, basic knowledge and calculation methods for machine design," which are characteristics to pay attention to in machine and jig materials. In the past, I have also experienced the dimensional change of parts due to temperature change.

  This is a note on "fit tolerance design and surface roughness design of bearing mountings," which is the most important aspect of bearing usage. Many websites explain the basics of fit tolerance ...

  Here is a memo titled "Types of Bearings and Their Correct Usage｜Knowledge Every Designer Should Know. When I started my career as a mechanical designer, the selection of bearings was (and still is) a headache for me many times...

  This is a note on the "factory power supply" for motors and other equipment used in factory automation (FA) facilities. When I started my career as a mechanical designer, I was asked by a factory to provide the specifications of the power supply for the factory.

  ここでは　機械設備　の設置や移動でに使われる　「フォークリフトの爪寸法」　をメモしています。   私自身、機械設計者としてキャリアを始めた頃、重量物を搬入するためのフォークリフ ...

  This section provides notes on the types of motors that many people may have trouble selecting when designing a machine. In machine design, motor selection is an important factor that determines the performance of ...

  Here are some notes on "geometric tolerances," which are mentioned in the Mechanical Drawing and Tolerance Design articles. I have received many complaints about drawings with geometric tolerances, such as "the intent of the drawing is not conveyed correctly to the manufacturing department," "suppliers are not aware of the geometric tolerances," and "the drawing is not accurate.

  ここでは　機械構造に使われる材料　の「比重」をメモしています。   機械設計において、部品の重量やコストを正確に把握することは、製品の性能を決定づける上で極めて大切です。　その ...

  ここでは　機械材料として使われるステンレス材料　の「切削加工に向いているステンレス」についてのメモです。   機械設計において、耐食性や強度に優れたステンレスは非常に魅力的な材 ...