What is a 60 1 gear ratio?
If a gearbox contains 3:1, 4:1 and 5:1 gear sets, the total ratio is 60:1 (3 x 4 x 5 = 60). In our example above, the 3,450 rpm electric motor would have its speed reduced to 57.5 rpm by using a 60:1 gearbox. Planetary gear sets can achieve ratios from about 3:1 to about 11:1.
What does the ratio of a motor mean?
Ratio. The listed ratio represents the ratio of the input speed to output speed of the gear drive. A 1:1 ratio means motor and pump shaft speed are identical (Figure 6). A 1:1.5 ratio for a motor running at 1,770 rpm means pump drive speed will be: 1,780 rpm (1/1.5) = 1,190 rpm.
How do you calculate motor RPM with gear ratio?
Write down the ratio of the speed reducer; for example, 12:5. Calculate the reduction by dividing 12 by 5, which equals 2.4. The RPM of the assembly is the RPM motor divided by the reduction. In our example, it would be 5000 RPM/2.4 = 2083 RPM.
What is the gear ratio 30 to 1?
If a motor has a gear reduction of 30:1 it means that 30 turns of a rotor shaft generates 1 turn of the reductor shaft, so in order to calculate actual motor speed or its no load speed you need to multiply with 30, because you probably measure the speed of the reductor, not the rotor itself.
How do you find the gearbox ratio of a motor?
The gear ratio is calculated by dividing the output speed by the input speed (i= Ws/ We) or by dividing the number of teeth of the driving gear by the number of teeth of the driven gear (i= Ze/ Zs).
What does gearbox ratio mean?
Gearbox ratios and Gear Ratios: Gearbox ratio definition: The ratio of the number of revolutions per minute of the input source in relation to the number of revolutions per minute of the output source is known as the ratio of the gearbox.
What do gear ratio numbers mean?
What Is a Gear Ratio? The ratio is the number of teeth on the driven gear (ring) divided by the number of teeth on the drive gear (pinion). So, if the ring gear has 37 teeth and the pinion has 9 teeth, the ratio is 4.11:1. That also means that for every one turn of the ring gear, the pinion will turn 4.11 times.
What is the purpose of gear ratio?
Gear ratio is used to measure a wide variety of mechanical items, including clocks, automobiles, farming machines and equipment and more. The gear ratios help determine how well the machine is performing. Circumferences are used to base the ratio upon.
What is the gear ratio of a motor?
When a geared motor is used, the motor’s speed is divided by the gear ratio. For example, an 1800 RPM AC synchronous motor with a 5:1 gearhead will run at 360 RPM. A gear ratio can be the ratio between the speeds, circumference, or teeth of 2 gears.
What does 60/1 gear ratio mean?
It means that there is a ratio of 60:1 between the input (motor) and the output shaft speed. The output shaft runs slower but has much more torque. What does it mean if my first gear ratio is 3.23? What is that compared to my second gear ratio at 1.95?
What is the gear ratio of an electric motor?
If a gearbox contains 3:1, 4:1 and 5:1 gear sets, the total ratio is 60:1 (3 x 4 x 5 = 60). In our example above, the 3,450 rpm electric motor would have its speed reduced to 57.5 rpm by using a 60:1 gearbox.
How do you calculate gearbox drive ratio?
Dividing the actual number of teeth on the first and second gear pairs, as a side note, it is common to have a ratio of 1:1 when in high gear, that means the gearbox input is turning at the same speed as the output shaft. If there is an ‘overdrive ‘ ratio it means the output is turning Faster than the input shaft. Next we go to the final drive.
What is gear ratio in power steering?
3.1. Example of Gear Ratio The gear ratio is the ratio of the number of turns the output shaft makes when the input shaft turns once.