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

Diameter of Driving Shaft Formula:

\[ d = \frac{l_h}{1.5} \]

1. What is Diameter of Driving Shaft of Coupling?

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

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

2. How Does the Calculator Work?

The calculator uses the formula:

\[ d = \frac{l_h}{1.5} \]

Where:

  • \( d \) — Diameter of driving shaft (meters)
  • \( l_h \) — Length of hub for coupling (meters)

Explanation: The hub length is divided by 1.5 to determine the appropriate shaft diameter for proper coupling engagement.

3. Importance of Shaft Diameter Calculation

Details: Correct shaft diameter ensures proper torque transmission, prevents coupling failure, and maintains system reliability.

4. Using the Calculator

Tips: Enter the length of hub for coupling (with ±5% tolerance). The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why is there a ±5% tolerance?
A: This accounts for manufacturing variations and ensures the coupling will fit properly in real-world applications.

Q2: What's the significance of the 1.5 factor?
A: This empirical factor ensures proper proportion between hub length and shaft diameter for optimal performance.

Q3: When would I need to calculate this?
A: When designing or selecting couplings for power transmission systems.

Q4: Does this apply to all coupling types?
A: No, this formula is specific to bushed pin type couplings.

Q5: How do I measure hub length?
A: Measure through the middle of the coupling hub from end point to end point.

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