Fit Tolerances
Fit tolerances are available for dimensions in the Dimension PropertyManager.
Fit tolerances are used typically for shafts in holes.
Tolerance Type 
You can choose from the following types for
showing Fit tolerances:
Fit
Fit with
tolerance
Fit (tolerance
only)
Classification 
You can choose from the following classifications.
The shaft and hole tolerances available are filtered to correspond to
the classification.
User Defined
Clearance
Transitional
Press
Hole Fit 
and Shaft Fit 
You can choose standard Fit tolerances from
the hole and shaft lists. The software automatically checks whether the
standard is appropriate for the dimension. When you select either a hole
or a shaft Fit tolerance, the list for the other type is filtered to present
only corresponding tolerances. The bilateral tolerances are also calculated
automatically.
NOTE:
The Classification aid for selecting an appropriate Fit designation is
either Hole Basis or Shaft Basis, depending on which Fit designation you
choose first. As Hole Basis and Shaft Basis Fit classifications in the
international standards are not fully bi-directional, you may get a different
list of suggested Fit choices (or an empty list) depending upon the order
in which you choose your designations. Hole Basis is preferred for most
manufacturing processes.
Automatic Versus User Defined Tolerance
The advantage of letting the SolidWorks software
calculate the bilateral tolerance values for you is that if the dimension
changes, the tolerances are updated automatically. To set tolerances manually,
click the Hole Fit or Shaft
Fit icon and type values in the Maximum
Variation 
and Minimum
Variation 
boxes. Select Show
parenthesis to insert parenthesis around the tolerance values (Fit with tolerance only).
Fit Tolerance Display
For Fit
or Fit with tolerance with both
hole and shaft tolerances, you can select a display style.
Stacked with line display
Stacked without line display
Linear display
With Fit
(tolerance only), the Fit standards are not displayed.