The image above represents r.p.m of driver pulley. To calculate the r.p.m of driver pulley, three essential parameters are needed and these parameters are Diameter of Driven Pulley (Db), r.p.m. of Driven Pulley (rb) and Diameter of Driver Pulley (Db).
The formula for calculating r.p.m of driver pulley:
ra = (Db x rb/Da
Where:
ra = r.p.m. of Driver Pulley
Db = Diameter of Driven Pulley
rb = r.p.m. of Driven Pulley
Da = Diameter of Driver Pulley
Let’s solve an example;
Find the r.p.m of driver pulley when the diameter of driven pulley is 21, the r.p.m of driven pulley is 18 and the diameter of driver pulley is 14.
This implies that;
Db = Diameter of Driven Pulley = 21
rb = r.p.m. of Driven Pulley = 18
Da = Diameter of Driver Pulley = 14
ra = (Db x rb/Da
ra = (21 x 18)/14
That is, ra = 378/14
ra = 27
Therefore, the r.p.m of driver pulley is 27 Hz.
Read more:Â How to Calculate and Solve for Diameter of Driver Pulley | Pulley Size Calculations
How to Calculate the r.p.m of Driver Pulley Using Nickzom Calculator
Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the r.p.m of driver pulley.
To get the answer and workings of the r.p.m of driver pulley using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.
You can get this app via any of these means:
Web – https://www.nickzom.org/calculator-plus
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You can also try the demo version via https://www.nickzom.org/calculator
Android (Paid) – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator
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Apple (Paid) – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Materials and Metallurgical under Engineering.
Now, Click on Ball Mill Sizing under Materials and Metallurgical
So, Click on Pulley Size under Ball Mill Sizing
Now, Click on r.p.m of Driver Pulley under Pulley Size Calculations
The screenshot below displays the page or activity to enter your values, to get the answer for the r.p.m of driver pulley according to the respective parameters which is the Diameter of Driven Pulley (Db), r.p.m. of Driven Pulley (rb) and Diameter of Driver Pulley (Db).
Now, enter the value appropriately and accordingly for the parameter as required by the Diameter of Driven Pulley (Db) is 21, r.p.m. of Driven Pulley (rb) is 18 and Diameter of Driver Pulley (Db) is 14.
Finally, Click on Calculate
As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the r.p.m of driver pulley and presents the formula, workings and steps too.