Minimum limit size of shaft from maximum clearance Calculator

Minimum Limit Size of Shaft Formula:

\[ S_{min} = H_{max} - C_{max} \]

Minimum Limit Size of Shaft (m):

1. What is Minimum Limit Size of Shaft?

Definition: The minimum limit size of shaft is the smallest possible diameter of a shaft in a clearance fit with a hole.

Purpose: This calculation ensures proper fit between mating parts in mechanical assemblies.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ S_{min} = H_{max} - C_{max} \]

Where:

\( S_{min} \) — Minimum limit size of shaft (meters)
\( H_{max} \) — Maximum limit size of hole (meters)
\( C_{max} \) — Maximum clearance between hole and shaft (meters)

Explanation: The maximum hole size minus the maximum clearance gives the smallest possible shaft size that will still fit.

3. Importance of This Calculation

Details: Proper shaft sizing ensures mechanical parts fit together with the intended clearance, preventing either too-loose or too-tight fits.

4. Using the Calculator

Tips: Enter the maximum hole size and maximum clearance in meters. The tolerance field (default ±5%) can be used to calculate size variations.

5. Frequently Asked Questions (FAQ)

Q1: What units should I use?
A: The calculator uses meters, but you can enter values in any unit as long as you're consistent.

Q2: What's a typical maximum clearance value?
A: This depends on the application, but common values range from 0.001mm to 0.1mm for precision fits.

Q3: When would I use the tolerance field?
A: Use it to account for manufacturing variations or to see how size tolerances affect the minimum shaft size.

Q4: What if my calculation gives a negative result?
A: This means your maximum clearance exceeds your maximum hole size, which isn't physically possible. Check your inputs.

Q5: How precise should my measurements be?
A: For engineering applications, measurements should typically be precise to at least 3 decimal places (microns).