- Standard Tolerance Chart
- Torrent Din Standards Tolerances 2017
General ISO Geometrical Tolerances Per. ISO 2768 | The following are general geometrical tolerances per. ISO 2768 for the following: - Linear Dimensions
- External Radius and Chamfer Heights
- Straightness and Flatness
- Perpendicularity
- Symmetry
- Runout
Related Mechanical Tolerance Design Data Variations on dimensions without tolerance values are according to ' ISO 2768'. All tolerance limits are given in mm. ISO 2768 and derivative geometrical tolerance standards are intendedto simplify drawing specifications for mechanical tolerances. ISO 2768 is mainly for parts that are manufactured by way of machining or removal of materials. Linear Dimensions: | Permissible deviations in mm for ranges in nominal lengths | f (fine) | Tolerance class designation (description) | v (very coarse) | | m (medium) | c (coarse) | | 0.5 up to 3 | ±0.05 | ±0.1 | ±0.2 | - |
|---|
| over 3 up to 6 | ±0.05 | ±0.1 | ±0.3 | ±0.5 | | over 6 up to 30 | ±0.1 | ±0.2 | ±0.5 | ±1.0 | | over 30 up to 120 | ±0.15 | ±0.3 | ±0.8 | ±1.5 | | over 120 up to 400 | ±0.2 | ±0.5 | ±1.2 | ±2.5 | | over 400 up to 1000 | ±0.3 | ±0.8 | ±2.0 | ±4.0 | | over 1000 up to 2000 | ±0.5 | ±1.2 | ±3.0 | ±6.0 | | over 2000 up to 4000 | - | ±2.0 | ±4.0 | ±8.0 |
|---|
External Radius and Chamfer Heights | Permissible deviations in mm for ranges in nominal lengths | f (fine) | Tolerance class designation (description) | v (very coarse) | | m (middle) | c (coarse) | | 0.5 up to 3 | ±0.2 | ±0.2 | ±0.4 | ±0.4 | | over 3 up to 6 | ±0.5 | ±0.5 | ±1.0 | ±1.0 | | over 6 | ±1.0 | ±1.0 | ±2.0 | ±2.0 |
Angular Dimensions | Permissible deviations in degrees and minutes for ranges in nominal lengths | f (fine) | Tolerance class designation (description) | v (very coarse) | | m (middle) | c (coarse) | | up to 10 | ±1º | ±1º | ±1º30' | ±3º | | over 10 up to 50 | ±0º30' | ±0º30' | ±1º | ±2º | | over 50 up to 120 | ±0º20' | ±0º20' | ±0º30' | ±1º | | over 120 up to 400 | ±0º10' | ±0º10' | ±0º15' | ±0º30' | | over 400 | ±0º5' | ±0º5' | ±0º10' | ±0º20' |
Straightness and Flatness | Ranges in nominal lengths in mm | Tolerance class | | H | K | L | | up to 10 | 0.02 | 0.05 | 0.1 | | over 10 up to 30 | 0.05 | 0.1 | 0.2 | | over 30 up to 100 | 0.1 | 0.2 | 0.4 | | over 100 up to 300 | 0.2 | 0.4 | 0.8 | | over 300 up to 1000 | 0.3 | 0.6 | 1.2 | | over 1000 up to 3000 | 0.4 | 0.8 | 1.6 |
Perpendicularity | Ranges in nominal lengths in mm | Tolerance class | | H | K | L | | up to 100 | 0.2 | 0.4 | 0.6 | | over 100 up to 300 | 0.3 | 0.6 | 1 | | over 300 up to 1000 | 0.4 | 0.8 | 1.5 | | over 1000 up to 3000 | 0.5 | 0.8 | 2 |
Symmetry (Position for ISO G&T Standard not-ASME or ANSI GD&T) | Ranges in nominal lengths in mm | Tolerance class | | H | K | L | | up to 100 | 0.5 | 0.6 | 0.6 | | over 100 up to 300 | 0.5 | 0.6 | 1 | | over 300 up to 1000 | 0.5 | 0.8 | 1.5 | | over 1000 up to 3000 | 0.5 | 1 | 2 |
Run-Out | Tolerance class | | H | K | L | | 0.1 | 0.2 | 0.5 |
Related Resources: - Online GD&T Fundamentals
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Standard Tolerance Chart
Top 4 Download periodically updates software information of iso 2768 full versions from the publishers, but some information may be slightly out-of-date.
Metric Fasteners. All Products; Hex Head Fasteners. DIN 931 / ISO 4014 Partially Threaded Hex Cap Screw. Japanese Industrial Standard (JIS) Hex Fasteners. Thread Tolerances for Screws and Nuts. For Screws and Nut Threads. Limits of Sizes for Bolt & Nut Threads. Viously published tolerances. Standard tolerances: Standard tolerances are those toleran-ces which can be achieved under nor-mal production processes. Special tolerances: Special tolerances can be achieved with additional measures being taken in pro-duction processes. The increased operations necessary to achieve these tolerances are noted in.
Torrent Din Standards Tolerances 2017
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