LIMITS, FITS, ALLOWANCES AND TOLERANCES

Limits, fits, allowances and tolerances charts and calculators  according to ISO 286-1 (2010), ISO 286-2 (2010) ,ANSI B4.2 (1978), ANSI B4.1-1967 (R2004) standards which are based on metric and inch units.

• IS0 286-1 Geometrical product specifications (GPS) - ISO code system for tolerances on linear sizes - Part 1: Basis of tolerances, deviations and fits
  • ISO limits, fits and tolerances calculator
  • ISO preferred fits calculator
  • Hole tolerance calculator
  • Shaft tolerance calculator
  • ISO preferred fits and tolerances table
• ANSI B4.1 Preferred Limits and Fits for Cylindrical Parts
  • ANSI limits and fits calculator
  • ANSI preferred tolerances and fits charts
• ISO 2768-1 - General tolerances - Part 1: Tolerances for linear and angular dimensions without individual tolerance indications
  • Linear dimensions tolerance table
  • Angular dimensions tolerance table
• ISO 2768-2 - General Tolerances - Part 2: Geometrical tolerances for features without individual tolerance indications
  • Straightness flatness tolerances chart
  • Perpendicularity tolerances chart
• Interference (press & shrink) fit calculator
  • Formulas for press fit / shrink fit calculations