What are the commonly used standards in mechanical design manuals

What are the commonly used standards in mechanical design manuals

The mechanical design manual contains various commonly used standards aimed at ensuring the safety and reliability of products, ensuring the safety, efficiency, and 

reliability of mechanical product design and manufacturing. The commonly used standards in mechanical design manuals cover a wide range of design and manuf--

acturing aspects, including but not limited to:

1. Basic information and formulas: including commonly used information and data, letters, domestic standard codes and national standard codes of various countries, 

mechanical transmission efficiency, density of commonly used materials, elastic modulus and Poisson's ratio of materials, friction coefficient, melting point, thermal 

conductivity and specific heat capacity of metal materials, linear expansion coefficient of materials, physical properties of liquid materials, physical properties of gas 

materials, etc. ‌

2. Conversion between legal units of measurement and commonly used units: Provides conversion between legal units of measurement and commonly used units to 

ensure standardization and internationalization of design. ‌

3. Material data: including elastic modulus and Poisson's ratio of commonly used materials, melting point, thermal conductivity and specific heat capacity of metal 

materials, linear expansion coefficient of materials, density of commonly used materials, approximate relationship of ultimate strength of commonly used materials, 

hardness and strength conversion of steel (black metal), etc. ‌

4. Friction coefficient: Provides the sliding friction coefficient, rolling friction coefficient, and friction coefficient of commonly used materials, which is very important 

for considering friction and wear in mechanical design. 

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5. Mechanical efficiency and transmission ratios of various transmissions: including approximate efficiency values of mechanical transmissions and friction pairs, tr-

ansmission ratios of various transmissions, which are crucial for ensuring the efficiency and performance of mechanical equipment. ‌

In addition, the mechanical design manual also includes design information for various mechanical components such as bearings, gears, connectors, as well as design 

information for hydraulic and pneumatic transmission systems. These contents provide comprehensive design guidance and references for mechanical designers, he-

lping them design and manufacture mechanical products that meet standards and requirements. ‌

Designers should have a deep understanding and adherence to applicable standards, and apply them to practical design work. Meanwhile, with the development and advancement of technology, designers also need to constantly learn and track new standards to ensure that their designed mechanical products always meet the latest 

standards and requirements. ‌