About Fit Tolerance ANSI
ANSI limits, fits and tolerances calculator has been developed to calculate tolerances of inner and outer features of journal bearings, linear bearings, thrust bearings, bushings, ball bearings, roller bearings, housings,...
ANSI limits, fits and tolerances calculator has been developed to calculate tolerances of inner and outer features of journal bearings, linear bearings, thrust bearings, bushings, ball bearings, roller bearings, housings, cylinder bores, drilled holes, linear and precision shafts, pistons, etc. ANSI standard limits and fits calculator works in line with ANSI B4.1-1967 (R2004) standard which is based on inch units. According to the input parameters of nominal size and fit type selection among running and sliding [RC], locational clearance [LC], locational transition [LT], locational interference [LN], force and shrink [FN] fits, size limits for hole/shaft are calculated. The schematic representation of the fit is also drawn. This calculator is applicable to non-threaded cylindrical parts.
Version History On screen keyboard for nominal size is now a numpad with a decimal separator. Minor updates and improvements. 3.0 Jan 15 On screen keyboard for nominal size switched to alphanumeric to enable user to input decimal separator. 2.2 12/15/2025 Minor updates and improvements. 2.1 12/02/2025 UI is modernized. Minor updates and improvements. 2.0 10/17/2025 Bug fixes and performance improvements. 1.6 11/05/2023 Minor updates and improvements. 1.5 05/07/2022 Minor updates and improvements. 1.4 03/11/2021 Minor updates and improvements. 1.3 03/02/2021 Minor updates and improvements. 1.2 10/28/2020 Minor updates and improvements. 1.1 03/17/2019 1.0 10/28/2017
Previous Versions
Here you can find the changelog of Fit Tolerance ANSI since it was posted on our website on 2024-10-05 21:15:54.
The latest version is 3.0 and it was updated on 2026-10-16 21:15:27. See below the changes in each version.
Fit Tolerance ANSI version 3.0
Updated At: 2026-10-14
Changes: Version History On screen keyboard for nominal size is now a numpad with a decimal separator.
Minor updates and improvements. 3.0 Jan 15 On screen keyboard for nominal size switched to alphanumeric to enable user to input decimal separator. 2.2 12/15/2025 Minor updates and improvements. 2.1 12/02/2025 UI is modernized.
Minor updates and improvements. 2.0 10/17/2025 Bug fixes and performance improvements. 1.6 11/05/2023 Minor updates and improvements. 1.5 05/07/2022 Minor updates and improvements. 1.4 03/11/2021 Minor updates and improvements. 1.3 03/02/2021 Minor updates and improvements. 1.2 10/28/2020 Minor updates and improvements. 1.1 03/17/2019 1.0 10/28/2017
Fit Tolerance ANSI version 3.0
Updated At: 2026-01-15
Changes: On screen keyboard for nominal size is now a numpad with a decimal separator.
Minor updates and improvements.
Fit Tolerance ANSI version 1.6
Updated At: 2023-11-05
Changes: Nov 5, 2023
Version 1.6
Bug fixes and performance improvements.
Disclaimer
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