Diameter of Driving Shaft of Coupling given Outside Diameter of Hub of Bushed Pin Coupling Calculator

Formula Used:

\[ d = \frac{d_h}{2} \]

Diameter of Driving Shaft (d):

1. What is Diameter of Driving Shaft of Coupling?

Definition: This calculator determines the diameter of the driving shaft for a bushed pin coupling based on the outside diameter of the coupling hub.

Purpose: It helps mechanical engineers and designers properly size shafts for coupling applications.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ d = \frac{d_h}{2} \]

Where:

\( d \) — Diameter of driving shaft (mm)
\( d_h \) — Outside diameter of hub of coupling (mm)

Explanation: The shaft diameter is typically half the hub diameter in standard coupling designs.

3. Importance of Proper Shaft Sizing

Details: Correct shaft diameter calculation ensures proper power transmission, prevents mechanical failure, and maintains coupling efficiency.

4. Using the Calculator

Tips: Enter the outside diameter of the coupling hub in millimeters. The result includes a ±5% tolerance for manufacturing variations.

5. Frequently Asked Questions (FAQ)

Q1: Why is there a ±5% tolerance?
A: The tolerance accounts for manufacturing variations and material properties in real-world applications.

Q2: Does this formula work for all types of couplings?
A: This specific formula is most accurate for bushed pin type flexible couplings.

Q3: What if my hub diameter is very large?
A: For large diameters, consult manufacturer specifications as the 1:2 ratio may not hold for all sizes.

Q4: How does material affect the calculation?
A: Material strength doesn't change the geometric ratio but may require additional strength calculations.

Q5: Should I round the result?
A: Yes, round to standard shaft sizes available from manufacturers.