How do we calculate the gear ratio.
Electric motor gearbox rpm calculator.
Motor torque changes with the speed.
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.
The torque delivered from an electrical motor producing 100 hp at speed 1000 rpm 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.
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Standard motors have shafts directly attached to the motor windings with shaft output speeds commonly between 1800 3000 rpm.
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The torque delivered from an electrical motor producing 0 75 kw 750 w at speed 2000 rpm can be calculated as.
Calculated out this gives an output torque of 3 500 in lbs and an output speed of 571 4286 rpm.
Gear motors have gear reduction transmissions built into them with shaft output speeds commonly between 400 550 rpm.
Calculating the rpm resulting from a motor and speed reducer assembly requires only basic mathematical knowledge.
Output rpm 2000 3 5.
1750 rpm 1000 rpm 3 5 inches d 2 d 2 6 125 inches.
1 hp 0 745 kw.
In order to calculate the gear ratio of the two meshed gears we need to know either.
Finally now that we have verified that our gear ratio satisfies our requirement we can calculate how long it should take for the motor to raise the elevator.
Scientific calculator simple calculator.
Standard motors and gear motors.
In the calculator above fla is rla 25.
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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.
We have now completely verified that our rs 550 motor and 26 1 gearbox will achieve or exceed our original goals.
Pulley and speed calculator.
If you need to amplify the motor torque with a factor of 3 then you need a gear reducer with a 3 0 gear ratio.
T 750 w 9 549 2000 rpm 3 6 nm example torque from an electrical motor.
There are two types of electric motors.
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.
Your source of power is let say an electric motor.
Example torque from an electrical motor.
Rla running load amps current drawn during normal operation of electric motor.
Below is a small calculator that will solve the ratio for you.
