Electric Motor Rpm Calculator

Related mobile apps from the engineering toolbox.

Electric motor rpm calculator.

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. Motor torque changes with the speed. For dc motor pf is one. A enter speed in 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. In the calculator above fla is rla 25. 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. Below is a small calculator that will solve the ratio for you.

Calculating the rpm resulting from a motor and speed reducer assembly requires only basic mathematical knowledge. The motor speed calculator calculates the synchronous motor speed from the following parameters. F supply frequency hz. P number of poles.

The torque delivered from an electrical motor producing 0 75 kw 750 w at speed 2000 rpm can be calculated as t 750 w 9 549 2000 rpm 3 6 nm example torque from an electrical motor. In order to more accurately meausre the prm i suggest that use the professional tool to help. Dcac single phaseac three phase enter current in voltage. 1 hp 0 745 kw.

Write down the rated rpm of your motor. Pulley and speed calculator. Check the circle next to the item you are solving for and enter the remain three items in the spaces provided. Rla running load amps current drawn during normal operation of electric motor.

Fla full load amps amount of current drawn when full load torque and horsepower is reached for the motor fla is usually determined in laboratory tests note. V enter current in amps. Calculator of the rotation speed in r p m revolutions per minute of an electric motor from frequency hz and number of poles. A handy tool for checking the prm of brushless motors.

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 50 hz or 60 hz. Choose the motor types. Below product is a great tool to measure the rpm of motors.

For example 5000 rpm. At no load you have maximum speed and zero torque. Load adds mechanical resistance.