Ms812021 Standard Pdf Guide
If you are working outside the Mitsubishi ecosystem, you might find that is the most comparable international standard. Many corporate "MS" (Motor Standard) documents are adapted from ISO 2768-1 (for linear/angular dimensions) and ISO 2768-2 (for geometric tolerances). Ms812021 Standard Pdf -
: It eliminates the need to label every single dimension with a tolerance, making technical drawings cleaner and easier to read.
The 2021 revision (often labeled ) applies to machining dimensions of less than 2,000 mm. It breaks down tolerances into specific classes: Tolerance Class Description Typical Application Class f High-precision components with tight fitment needs. Class m General engineering parts; the most common default. Class c Non-critical structures or rough-cut components. Key Technical Specs ms812021 standard pdf
: Specific tolerances for stamped or pressed sheet metal parts. Accessing the PDF
: External and internal sizes, diameters, and radii. Angular Dimensions : Machined angles and corner roundings. If you are working outside the Mitsubishi ecosystem,
: It ensures that parts produced across different shifts or by different suppliers meet the same quality and fitment requirements. Scope and Classification
The standard specifies permissible deviations for various types of measurements: The 2021 revision (often labeled ) applies to
The MS 81 series provides standardized guidelines for . In industrial manufacturing, if a specific dimension on a drawing does not have an individual tolerance listed, engineers look to this standard to determine the acceptable range of deviation.
As "MS 81" is an internal corporate standard of , it is typically protected by intellectual property laws. Official copies are generally only available to authorized suppliers or departments within the MMC/MFTBC supply chain.