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

Hub Outside Diameter Formula:

\[ d_h = 2 \times d \]

Outside Diameter of Hub:

1. What is Hub Outside Diameter Calculation?

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

Purpose: It helps mechanical engineers and designers properly size coupling hubs for shaft connections.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ d_h = 2 \times d \]

Where:

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

Explanation: The hub diameter is simply twice the shaft diameter to provide sufficient material for secure connection.

3. Importance of Hub Diameter Calculation

Details: Proper hub sizing ensures adequate strength for torque transmission and maintains the integrity of the shaft connection.

4. Using the Calculator

Tips: Enter the driving shaft diameter in meters. The result includes a ±5% tolerance for manufacturing variations.

5. Frequently Asked Questions (FAQ)

Q1: Why is the hub diameter twice the shaft diameter?
A: This ratio provides sufficient material thickness for proper strength and torque transmission.

Q2: What does the ±5% tolerance mean?
A: The actual hub diameter may vary by up to 5% from the calculated value due to manufacturing tolerances.

Q3: When would I need a different ratio?
A: For high-torque applications or special materials, consult engineering standards for appropriate ratios.

Q4: How do I measure shaft diameter?
A: Use precision calipers or micrometers to measure the shaft diameter accurately.

Q5: Does this apply to all coupling types?
A: This formula specifically applies to bushed pin couplings; other types may require different calculations.