Electric Motor Rpm Chart

Choose the motor types.

Electric motor rpm chart. A enter speed in rpm. If you have any problems with the pulley calculator please email us. The motor speed calculator calculates the synchronous motor speed from the following parameters. 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.

T inlb p hp 63025 n 1. Hz frequency or cycles sec. Below is a small calculator that will solve the ratio for you. N revolution per minute rpm alternatively.

60hz is the most common frequency in the us. 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. Calculating the rpm resulting from a motor and speed reducer assembly requires only basic mathematical knowledge. V enter current in amps.

Check the circle next to the item you are solving for and enter the remain three items in the spaces provided. Simply enter the values and click calculate. So for example if you have a 4 pole motor on 60 hz then rpm 60 2 4 60 1800 rpm. 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.

This can be found on the nameplate of the motor. For dc motor pf is one. Enter the input voltage in volts current in amps speed in rpm and power factor. Pulley and speed calculator.

At no load you have maximum speed and zero torque. Dcac single phaseac three phase enter current in voltage. 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.

For example 50 hz or 60 hz. Torque in imperial units can be calculated as. F supply frequency hz. 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.

50hz is the most common frequency outside the us. Electrical motor power velocity and torque equations. T ftlb p hp 5252 n 1b. P number of poles.

T ftlb torque lb f ft. The motor speed in rpm is calculated as n s 2 cdot 60 cdot dfrac f p. Poles number of poles of your motor. For example 2 or 4.

Motor torque changes with the speed. P hp horsepower delivered by the electric motor hp. T inlb torque in lb f.