1. What is Hydraulic Motor Torque?

Hydraulic motor torque is the rotational force produced by a hydraulic motor, determined by the motor's displacement and the system pressure. It's a crucial parameter for selecting and sizing hydraulic motors for specific applications.

2. How Does the Calculator Work?

The calculator uses the torque equation:

Where:

• \( Displacement \) — Motor displacement per revolution (m³/rev)
• \( Pressure \) — Pressure difference across the motor (Pa)
• \( \pi \) — Mathematical constant (~3.14159)

Explanation: The equation shows that torque is directly proportional to both displacement and pressure, with the result divided by 2π to convert to rotational torque units.

3. Importance of Torque Calculation

Details: Accurate torque calculation is essential for proper motor selection, ensuring the motor can handle the required load without stalling or overheating.

4. Using the Calculator

Tips: Enter displacement in cubic meters per revolution (m³/rev) and pressure in Pascals (Pa). Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between theoretical and actual torque?
A: Theoretical torque is calculated as shown, while actual torque accounts for mechanical efficiency (typically 80-95% of theoretical).

Q2: How does motor speed affect torque?
A: In an ideal hydraulic motor, torque is independent of speed and depends only on pressure and displacement.

Q3: What are common displacement units?
A: While m³/rev is standard, cc/rev (cubic centimeters) is commonly used in industry (1 cc = 1×10⁻⁶ m³).

Q4: How does pressure relate to system design?
A: Higher pressure allows smaller motors to produce same torque, but requires stronger components.

Q5: Can this be used for hydraulic pumps?
A: The same formula applies for calculating the torque required to drive a hydraulic pump.