Electric Motor Rpm Chart

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

Electric motor rpm chart.

Enter any 3 known values to calculate the 4th 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. At no load you have maximum speed and zero torque. Choose the motor types. T inlb torque in lb f.

For example if your small pulley is 80mm diameter and spins at 1000 rpm and you need to find the second pulley size to spin it at 400 rpm enter pulley1 80 pulley 1 rpm 1000 pulley 2 rpm 400 and. Check the circle next to the item you are solving for and enter the remain three items in the spaces provided. If you have any problems with the pulley calculator please email us. Below is a small calculator that will solve the ratio for you.

So for example if you have a 4 pole motor on 60 hz then rpm 60 2 4 60 1800 rpm. Hz frequency or cycles sec. Dcac single phaseac three phase enter current in voltage. N revolution per minute rpm alternatively.

Say you want to know what size pulley to use on that old planer to get 3450 rpm you know the motor rpm is 1725 and the pulley on the motor is 6. Motors run at a specific revolutions per minute rpm and a speed reducer is needed if you want to keep that motor but have a lower rpm. 1 ft lb f 1 356 nm. P hp horsepower delivered by the electric motor hp.

This can be found on the nameplate of the motor. In our example input electrical power of the motor is 0 22 a x 6 v 1 32 w output mechanical power is 1000 rpm x 2 x 3 14 x 0 00126 n m 60 0 132 w. T ftlb torque lb f ft. For dc motor pf is one.

The motor speed calculator calculates the synchronous motor speed from the following parameters. V enter current in amps. T ftlb p hp 5252 n 1b. Poles number of poles of your motor.

Motor torque changes with the speed. F supply frequency hz. Calculating the rpm resulting from a motor and speed reducer assembly requires only basic mathematical knowledge. Pulley and speed calculator.

A enter speed in rpm. The motor speed in rpm is calculated as n s 2 cdot 60 cdot dfrac f p. This simple to use calculator will give you the correct size pulley or motor speed to use if you know the actual or desired information. T inlb p hp 63025 n 1.

Rpm shaft rotation speed or revolutions per minute. Simply enter the values and click calculate. 50hz is the most common frequency outside the us. Enter the input voltage in volts current in amps speed in rpm and power factor.

P number of poles. Torque in imperial units can be calculated as. 60hz is the most common frequency in the us.