Hydraulic Motor Torque Calculator Metric

Hydraulic Motor Torque Formula (Metric):

\[ T_{hm\_metric} = \frac{Disp_{hm} \times P_{hm}}{20 \times \pi \times \eta_{hm}} \]

Torque (T_hm_metric):

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1. What is Hydraulic Motor Torque Calculation?

Hydraulic motor torque calculation determines the rotational force produced by a hydraulic motor based on its displacement, operating pressure, and efficiency. This is essential for proper motor selection and system design in hydraulic applications.

2. How Does the Calculator Work?

The calculator uses the hydraulic motor torque formula (metric):

\[ T_{hm\_metric} = \frac{Disp_{hm} \times P_{hm}}{20 \times \pi \times \eta_{hm}} \]

Where:

\( T_{hm\_metric} \) — Torque in Newton-meters (N·m)
\( Disp_{hm} \) — Displacement in cubic centimeters per revolution (cm³/rev)
\( P_{hm} \) — Pressure in bars
\( \eta_{hm} \) — Efficiency (unitless, 0-1)

Explanation: The formula calculates the theoretical torque output of a hydraulic motor, accounting for its displacement characteristics, operating pressure, and mechanical efficiency.

3. Importance of Torque Calculation

Details: Accurate torque calculation is crucial for selecting appropriate hydraulic motors, ensuring proper system performance, preventing motor overload, and optimizing energy efficiency in hydraulic systems.

4. Using the Calculator

Tips: Enter displacement in cm³/rev, pressure in bars, and efficiency as a decimal value between 0 and 1. All values must be positive numbers with efficiency not exceeding 1.

5. Frequently Asked Questions (FAQ)

Q1: What is hydraulic motor displacement?
A: Displacement refers to the volume of fluid required to rotate the motor output shaft through one complete revolution, measured in cm³/rev.

Q2: Why is efficiency important in torque calculation?
A: Efficiency accounts for mechanical losses in the motor. Actual torque output is always less than theoretical due to friction and other losses.

Q3: What are typical efficiency values for hydraulic motors?
A: Efficiency typically ranges from 0.85 to 0.95 for most hydraulic motors, depending on type, size, and operating conditions.

Q4: Can this formula be used for all hydraulic motor types?
A: This formula applies to most positive displacement hydraulic motors including gear, vane, and piston motors operating under steady-state conditions.

Q5: How does pressure affect torque output?
A: Torque is directly proportional to pressure. Higher operating pressure results in greater torque output for a given motor displacement.