If you know the speed ratio and the speed input, you can calculate the speed output using the formula output speed = input speed ÷ speed ratio. For example, if you have a speed ratio of 3, and the input gear revolves at 180 rpm, work out : 1803=60 The output speed is 60 rpm. ...
(Shared from eHow.com) The gear box ratio is the difference between the RPM produced by the motor and the RPM measured after the gearbox. A gear box can either increase or decrease the RPM of a motor. A gear box ratio is noted A:B where A>B in a speed reducer and A<B in a mu...
Write down the rated RPM of your motor; for example, 5000 RPM. 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 ...
the gear ratio tells you the speed of the driven wheel. For example, consider a system with a gear ratio of 3:1, which means the driver wheel spins three times as fast as the driven wheel. If the speed of the driver wheel is 300 rpm, the speed of the...
Progressive pitch improves performance in high-speed applications. Propeller pitch determines the final gear ratio between the engine and the water. A boat should be "propped" to operate within its wide-open throttle (WOT), which can be found in the motor specifications or the owner's manual....
A final word of caution here is that my formula above does not allow for efficiency loss, friction or any speed ratio's which may exist with your set up. now if you use this torque and transpose the formula for motor power you can find the RPM for the motor ie:- motor power * torq...