How to Use the Calculator
- Enter the shaft diameter in millimeters (mm)
- Select the material type from the dropdown menu
- Set the tolerance percentage (typically between 0-10%)
- Click the "Calculate" button to compute the clearance hole size
- The calculator will display the clearance hole size and calculation details
Working Principle
The calculator uses the formula:
Clearance Hole = Shaft Diameter × (1 + Tolerance)
This formula adds a specified percentage of clearance to the shaft diameter to ensure a smooth fit without interference.
Material Recommendations
- Steel: Use a tolerance of 1-3%
- Aluminum: Use a tolerance of 1-2%
- Brass: Use a tolerance of 1-2%
- Plastic: Use a tolerance of 1-5%
Applications
This calculator is useful for:
- Manufacturing and engineering
- Automotive industry
- Electronics assembly
- General mechanical design