# how to find out ball mill rpm from motor and gear box output rpm #### What Is the Formula for RPM? It Still Runs

Output RPM formula = Input RPM times number of driving gear teeth divided by number of driven gear teeth. A small transmission in a mixer has a 12-tooth gear on the motor shaft driving a 72-tooth gear on the mixer blade. The motor is turning at 1,800 RPM. What is the mixer blade speed?

#### how to find out ball mill rpm from motor and gear box output rpm

1480 Rpm Motor What Is The Mill Pulley. Ball mill drive system pulleys motor sizing.Get p and support online grinding mill drive system pulleys motor sizing grinding future mill drive pulley cgga mill belt drive conversion mikesshop the basic motor speed is 4000 rpm and the timing belt and pulley reduce the layshaft the black plate is part of the old mill gear drive assembly that secured the ...

#### 3 Ways to Calculate RPM - wikiHow

If the driven gear is larger than the driver gear, we divide the result of the ratio between the driven and driver gear into the RPM, of the driver gear. For our lager driven gear with 160 teeth, we divide the RPM of the driver gear, 100, by the result of 2 from the previous step to get 100 / 2 = 50RPM for the driven gear.

#### How to Calculate the RPM of a Motor and Speed Reducer It ...

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. Calculating the RPM resulting from a motor and speed reducer assembly requires only basic mathematical knowledge.

#### Working out Revolutions Per Minute

In the example below the DRIVER gear is large than the DRIVEN gear. The general rule is - large to small gear means & 39;multiply& 39; the velocity ratio by the rpm of the first gear. Divide 60 teeth by 30 teeth to find the velocity ratio. Multiply this number 2 by the rpm 120 . This gives an answer of 240rpm.

#### Calculating Output Speed Using Pulley Diameters and Input ...

RPM Output/RPM Input = Multipli ion Factor On a belt-driven fan the two primary speeds required are the RPM of the Motor and the RPM of the fan. For example, if you know the motor speed is 1778 rpm and the fan speed is 944 rpm the multipli ion factor would be: 944/1778 = .5309

#### Gear Reducing Formulas - Engineering ToolBox

Gear Output Speed. S o = S i / r 2 where . S o = output speed rad/s, rpm S i = input speed rad/s, rpm Example - Gear Output Speed. The output speed of a transmission with input speed 2000 rpm and transmission ratio 3.8 can be calculated as. S o = 2000 rpm / 3.8 = 526 rpm . Gear Output Horsepower

#### Pulley Calculator. RPM, Belt Length, Speed, Animated Diagrams

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. 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 ...