? Type of input power (electric motor, inner combustion engine with mechanical or hydraulic drive).
? Type of equipment to get driven.
? Amount of horsepower expected to provide suffi cient power to your driven shaft.
? Full load velocity with the fastest working shaft (rpm).
? Desired pace on the slow working shaft ( or even the demanded pace ratio). NOTE: If speeds are variable ascertain the horsepower to be transmitted at just about every velocity.
? Diameters with the drive and driven shafts . . . This value may restrict the minimal amount of teeth for your sprockets.
? Center distance on the shafts.
? Note the position and any room limitations that could exist. Usually these limitations are within the optimum diameter of sprockets (this restricts the usage of single strand chains) or even the width with the chain (this restricts the use of multi-strand chains).
? Conditions on the drive together with a determination in the class of load (uniform, reasonable or hefty), serious operating temperatures or chemically aggressive environments ought to be noted.
Abbreviations Used in Equations
N Quantity of teeth over the significant sprocket.
n Amount of teeth about the smaller sprocket.
R Velocity in revolutions per minute (rpm) of the big sprocket.
r Speed in revolutions per minute (rpm) of the modest sprocket.
C Shaft center distance in chain pitches.
HP Horsepower rating of your drive motor or engine.
KW Kilowatt electrical power rating of drive motor or engine if making use of metric units.
SF Service Factor