Electric Motor Pulley Rpm Formula

1750 rpm 1000 rpm 3 5 inches d 2 d 2 6 125 inches.

Electric motor pulley rpm formula.

Below is a small calculator that will solve the ratio for you. Well if there is no load there is no torque. In this instance the initial small driver pulley rpm is 2000. Assume a power shaft pulley size of 4 inches.

And the formula for calculating torque will be. Multiply by the speed ratio. Check the circle next to the item you are solving for and enter the remain three items in the spaces provided. Using the motor from generator kit is the best way to do it.

Why do you need to connect the motor to the load. τ i v e 60 rpm 2π connect the motor to the load. Pulley and speed calculator. Electrical motor power velocity and torque equations.

Get the speed ratio by dividing the speed in rpm of the power shaft by the speed in rpm of the load shaft. If you have any problems with the pulley calculator please email us. The math of pulley sizing. There are complicated formulas for determining pulley ratios but in generic layman terms simply divide the driven component pump by rpm the driver component motor or engine rated by rpm to get the required ratio.

Torque in imperial units can be calculated as. T ftlb p hp 5252 n 1b. T inlb torque in lb f. Measure current voltage and rpm.

Calculate the sizes of the pulleys. The result will give the load shaft pulley size. 125 cm 17 76 seeds 7 04 cm. P hp horsepower delivered by the electric motor hp.

T inlb p hp 63025 n 1. τ rpm 2π 60 i v e. N revolution per minute rpm alternatively. In the example below the pump rpm is 1070 for full output while the motor is 1750 rpm.

1 in 25 4 mm. The sets of pulleys will be drawn at the bottom of the page with each set rpm reductions and total rpm reduction through all entered sets. This is generally a good size for efficient belt operation. Motor and equipment speed for pulleys with different diameters are indicated in the charts below.

1 ft lb f 1 356 nm. The rpm of the first driven large pulley is transferred to second set small driver pulley and so on.