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NEW Square to Round and Round to Square Transition - Full Scale Printable Templates
Pulley Calculator - Centers - RPM - Belt Length and Speed
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Gap SmallEnter any 3 Known Values to Calculate the 4th
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If you know any 3 values (Pulley sizes or RPM) and need to calculate the 4th, enter the 3 known values and hit Calculate to find the missing value.
For example, if Pulley 1 is 6" diameter, and spins at 1000 RPM,
and you need to find Pulley 2 size to spin it at 500 RPM,
enter Pulley 1 = 6, Pulley 1 RPM = 1000, Pulley 2 RPM = 500, and hit Calculate to find Pulley 2 diameter.
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Centers
Rotate
Click slider to select, then use Keyboard Cursor Keys
◄ ► to Fine Tune |
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Multiple Pulley Sets - RPM Reduction
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To calculate multiple pulley sets, where the first driven pulley shaft drives the second driver pulley, and so on,
enter Initial Driver Pulley RPM, Number of Sets, pulley Diameters and Centers of each Set below.
The RPM of the first Driven pulley is transferred to second set Driver pulley and so on.
To Decrease RPM, choose Initial Bottom pulley and work up. To Increase RPM select Initial Top pulley and work down.
Drag the Rotate slider to animate the diagram and see the actual RPM reduction through all the pulley sets.
Rotate Scale See Also: Chain and Sprocket Calculator 
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All Inch inputs and dimensions are actual physical finished sizes (unless otherwise noted)
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Fraction Precision
Select output Fraction Precision, Decimal Inch or Metric mm.
Select and Re-Calculate to display. |
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If you're cutting blocks, concrete, stone or ANYTHING and there's DUST - DON'T TAKE THE RISK
Don't cut it, or cut it wet so there's NO DUST - Silicosis Sucks
And if you're cutting wet, wear a mask - there's dust in the spray mist too!
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Create and Print Full Scale PDFs with diagrams on this page (templates)
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Fine Tune
◄►
On calculators with Slider Controls, drag slider tab to get close, then use keyboard cursor keys ◄ ► to fine tune.
Or Right Click the slider and use the up down arrows that appear to adjust - Right click again to go back to the slider.
Or Right Click the slider and use the up down arrows that appear to adjust - Right click again to go back to the slider.
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The main Navigation tabs are Metric.
Directly under each main Metric tab is a smaller 'Inch' tab for the Inch version.
Drop Down Menus have Metric for Metric Versions.
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Drop Down Menus have Metric for Metric Versions.
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