RPM Calculator Between Two Pulleys
Calculate the RPM of any machine between two pulleys with motor RPM. Drive & driven pulleys size can be in mm or inches.
RPM Calculator Between Two Pulleys
Reviewed by Jasmine
Use this calculator to find the RPM of any machine between two pulleys with motor RPM. Drive & Driven pulleys size will be in mm or inches. This tool is useful when you need to change the speed of the machine, or adjust the RPM by changing the pulley size.
Results
| Drive Pulley Size: | 220 (220 mm / 8.66 in) |
| Driven Pulley Size: | 320 (320 mm / 12.60 in) |
| Motor RPM: | 1465 RPM |
| Machine RPM: | 1007.19 RPM |
How RPM is Calculated
You can calculate the RPM of the driven pulley using the following formula:
Driven Pulley RPM = (Motor RPM × Drive Pulley Diameter) ÷ Driven Pulley Diameter
By adjusting the size of the pulleys, you can increase or decrease the speed of the driven pulley based on the motor's RPM. For more industrial calculations, you can visit our home page.
Frequently Asked Questions
RPM stands for Revolutions Per Minute, which measures how many complete turns an object makes in one minute.
The larger the drive pulley relative to the driven pulley, the higher the driven pulley's RPM. Conversely, a larger driven pulley will reduce RPM.
You can use this calculator to calculate a variety of pulleys, provided the diameter and motor RPM are input correctly.
To increase the RPM of a machine, increase the pulley diameter of the motor or decrease the driven pulley diameter.
The drive pulley is connected to the motor, while the driven pulley receives the power and rotates in response at a different RPM.
Yes, RPM can be measured manually using a tachometer or by counting the number of rotations within a set time frame.
RPM ensures that the machine operates within a safe and efficient speed range. This prevents wear and tear and improves performance.
The calculator is designed for mm and inches, but you can adapt it for other measurement systems by adjusting the conversion factors accordingly.
