? Type of input energy (electric motor, internal combustion engine with mechanical or hydraulic drive).
? Type of tools to become driven.
? Amount of horsepower required to provide suffi cient energy towards the driven shaft.
? Full load speed of the quickest running shaft (rpm).
? Desired velocity of your slow running shaft ( or even the needed velocity ratio). NOTE: If speeds are variable determine the horsepower for being transmitted at every speed.
? Diameters of the drive and driven shafts . . . This value could restrict the minimal quantity of teeth for that sprockets.
? Center distance of your shafts.
? Note the place and any space limitations that may exist. Typically these limitations are to the greatest diameter of sprockets (this restricts using single strand chains) or the width of the chain (this restricts the usage of multi-strand chains).
? Conditions of your drive such as a determination with the class of load (uniform, moderate or hefty), significant operating temperatures or chemically aggressive environments must be mentioned.
Abbreviations Utilized in Equations
N Variety of teeth around the big sprocket.
n Quantity of teeth over the small sprocket.
R Speed in revolutions per minute (rpm) in the massive sprocket.
r Pace in revolutions per minute (rpm) in the compact sprocket.
C Shaft center distance in chain pitches.
HP Horsepower rating from the drive motor or engine.
KW Kilowatt power rating of drive motor or engine if working with metric units.
SF Services Factor