Disclaimer: The information on this page has not been checked by an independent person. Use this information at your own risk.
ROYMECH

Home

HOLE AND SHAFTS TOLERANCE PAGES- Using Fundemental Deviations and Tolerance Band T

ISO Tolerance Band T ISO Shaft Nearest limit to Zero ISO HOLE Nearest limit to Zero

Examples in using above tables..

Hole Dia 110mm H11,... = 110mm + 0mm = 110.000mm / 110mm + (0+ T=0.220)=110.220mm

Shaft e9.. = 110mm - 0.072=109.928mm/ 110mm - (0.072 + T=0.087) = 109.841mm

HOLE AND SHAFTS TOLERANCE To ISO 286-2

ISO Hole Limits ISO Shaft Tolerance

EXAMPLE LIMITS AND FITS USING HOLE BASIS

DescriptionHole Shaft
Loose RunningH11 c11
Free RunningH9 d9
Loose RunningH11 c11
Easy Running - Good quality easy to do-H8 f8
SlidingH7 g6
Close Clearance - Spigots and locationsH8 f7
Location/ClearanceH7 h6
Location- slight interferenceH7 k6
Location/TransitionH7 n6
Location/Interference- Press fit which can be separatedH7p6
Medium DriveH7 s6
ForceH7 u6

Useful Links.

  1. MWTech -> "Mechanical Engineering " for tables of limits and fits.
  2. tecnologix Site includes a java calculator for calculating limits and fits - Really Really useful - You do not need my tables
  3. ED-ISO PDF Useful notes on ISO limits and fits
  4. SEED .... SEED Engineering design guide- A good reference sit on limits and fits

Home

Please Send Comments to RoyBeardmore@ic24.net

Last Updated 25/02/2001