Electric Motor Rpm Chart

For example 2 or 4.

Electric motor rpm chart.

For dc motor pf is one. Motor torque changes with the speed. 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. 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.

1 ft lb f 1 356 nm. F supply frequency hz. V enter current in amps. 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.

If you have any problems with the pulley calculator please email us. Calculating the rpm resulting from a motor and speed reducer assembly requires only basic mathematical knowledge. Dcac single phaseac three phase enter current in voltage. Below is a small calculator that will solve the ratio for you.

Choose the motor types. T inlb torque in lb f. 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. 60hz is the most common frequency in the us.

Electrical motor power velocity and torque equations. Torque in imperial units can be calculated as. 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. Rpm shaft rotation speed or revolutions per minute.

For example 50 hz or 60 hz. T ftlb p hp 5252 n 1b. Enter the input voltage in volts current in amps speed in rpm and power factor. So for example if you have a 4 pole motor on 60 hz then rpm 60 2 4 60 1800 rpm.

A enter speed in rpm. 1750 rpm 1000 rpm 3 5 inches d 2 d 2 6 125 inches. 50hz is the most common frequency outside the us. At no load you have maximum speed and zero torque.

N revolution per minute rpm alternatively. P number of poles. The motor speed calculator calculates the synchronous motor speed from the following parameters. Hz frequency or cycles sec.

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. Check the circle next to the item you are solving for and enter the remain three items in the spaces provided. P hp horsepower delivered by the electric motor hp. Simply enter the values and click calculate.

T inlb p hp 63025 n 1. This can be found on the nameplate of the motor. Pulley and speed calculator.