calculate speed drive pulley.
There are four steps on how to measure pulley size. One of the step-by-step instructions is to diameter of driven pulley) times (revolutions of driven pulley) divided by (revolutions of driven pulley) equals (diameter of driver pulley).
the circumference ratio
A pulley costs anywhere from $19.99 to thousands of dollars. It generally depends on the type of pulley you're seeking and the size of the pulley.
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If you decrease the size of the driven pulley the fan will turn faster. You can achieve the same effect by increasing the size of the drive pulley.
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increase drive pulley size
It is calculated by dividing the load by the effort.
It is calculated by dividing the load by the effort.
Drive Pulley = pulley on motor Driven Pulley = pulley on blower First determine your Ratio - divide large pulley size by small pulley size this will give you gear ratio, Example 2" drive pulley and a 4" Driven Pulley = 2:1 gear ratio If you know your motor shaft RPM divide that number by the ratio to get the RPM of the driven pulley, if your shaft rpm is 1800 rpm you would divide 1800 by 2 which would = 900 rpm on your driven pulley if your drive pulley is larger than than your driven pulley you multiply the rpm by the ratio example 1800 rpm x 2 = 3600 rpm
27mm