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The driven pulley is the reactive pulley to the driver. This may be for a drill, saw, polisher or other driven device. A larger driver pulley than driven pulley will produce higher driven than driver pulley speed. Sizes can be set for either to be calculated, but usually it is for calculation of the ratio of the two of them.
Rotation rate is the speed of the pulley, measured in RPM (revolutions per minute), rad/s (radians per second), or Hz (cycles per second). Example Calculation. If the belt speed is 3600 m/h (1 m/s) and the rotation rate is 60 RPM, the pulley diameter would be: Pulley Diameter (m) = \( \frac{2 \times 1}{60} = 0.0333 \, \text{m} \)
This Ahm belt length calculator helps you to calculate the belt length as well as driven pulley size of any machine by following values. You will need to enter the motor RPM, drive pulley size, center distance between pulleys, and the required RPM.
Formula Fundamentals for Force Calculation in Pulley Systems. The core concept behind pulley force calculation is the relationship between the load (the weight that needs to be lifted), the mechanical advantage of the system, and the input force required. The most basic formula is expressed as follows: Input Force = Load Force ÷ Mechanical ...
How to Use the Pulley System Calculator: Enter the applied force in Newtons (N). Enter the load mass in kilograms (kg). Input the gravity, default is 9.81 m/s². Specify the system efficiency. Default is 100%. Input the number of pulleys in the system. Click “Calculate” to see the result. How it Calculates the Result:
Click Calculate: Once all the values are input, hit the 'Calculate' button to get your result. The Pulley Force Calculator will then display the force needed to lift the object, along with the calculation details for transparency. Pulley Force Calculation Formula. The core formula used to calculate pulley force is: F = (m × g) / (n × η) Where:
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Definition: This calculator computes the rotational speed (\( RPM_s \)) of a pulley based on the belt speed (\( bS \)) and the pulley diameter (\( D \)). Purpose: It is used in mechanical engineering to determine the rotational speed of pulleys in belt-driven systems, applicable in machinery, conveyor systems, and automotive applications.