General Tolerance Iso 2768-mk ((better))
Understanding General Tolerance: A Guide to ISO 2768-MK
ISO 2768-1 (m): Represents the "medium" tolerance class for linear and angular dimensions (external sizes, diameters, radii, distances). general tolerance iso 2768-mk
: Ranges from 0.05 mm for small parts to 0.6 mm for parts over 1000 mm long. Perpendicularity Understanding General Tolerance: A Guide to ISO 2768-MK
m (Part 1): Represents the Medium tolerance class for linear and angular dimensions (lengths, radii, angles). (2) Briefly summarize how ISO 2768 was updated
Why choose 'mk' over 'cL'? Functionality. 'cL' is too loose for sliding fits, rotating shafts, or aligned mounting holes. 'mk' ensures basic interchangeability.
- (2) Briefly summarize how ISO 2768 was updated or superseded by ISO 2768‑1:1989 / ISO 2768‑2 or later standards (one short sentence).
- (3) List one national or industry alternative to ISO 2768 and one reason designers might select it.
- ISO 2768-1: Covers linear and angular dimensions.
- ISO 2768-2: Covers geometrical tolerances (straightness, flatness, perpendicularity, symmetry, runout).
Radii and Chamfers (Class 'm')
| Nominal Dimension Range (mm) | Tolerance (mm) | | --- | --- | | 0.5 to 3 | ±0.2 | | >3 to 6 | ±0.5 | | >6 to 30 | ±1.0 |