







The speed at which the conveyor moves 
20070417 

From Sheila: I am trying to figure out the speed (ft/min) of a conveyor.
It has a 1HP, 1200 RPM motor with a reducer that has a ratio of 60:1.
My reducer sprocket pitch diameter is 7.027 and my drive sprocket pitch diameter is 11.474.
How do I use this information to find the speed at which the conveyor moves? Answered by Stephen La Rocque. 





Two gears 
20061012 

From A student: gear a on the left has 18 teeth and gear b on the left has 8 teeth.
suppose gear b makes one complete rotation in the counterclockwise direction. give the angle of rotation and direction for the rotation of gear a. Answered by Stephen La Rocque and Penny Nom. 





Two gears 
20041014 

From Lindsay: "There are two gears, a small one on the left and a larger one on the right. The gear on the right makes 1 revolution. The gear on the left makes two revolutions. Suppose the gear on the right is turned through an obtuse angle. Will the gear on the left make a full turn?" Answered by Penny Nom. 





Gears and ratios 
20021117 

From Matt: if gear A has 12teeth and Gear B has 16teeth and gear C has 10teeth and gear A turns 40 times how many times will gear C turn Answered by Penny Nom. 

