? Type of input power (electric motor, inner combustion engine with mechanical or hydraulic drive).
? Type of gear to become driven.
? Amount of horsepower demanded to provide suffi cient energy on the driven shaft.
? Full load velocity in the quickest running shaft (rpm).
? Desired speed on the slow working shaft ( or the essential velocity ratio). NOTE: If speeds are variable establish the horsepower to be transmitted at every velocity.
? Diameters in the drive and driven shafts . . . This worth could restrict the minimal variety of teeth for that sprockets.
? Center distance on the shafts.
? Note the place and any room limitations that could exist. Usually these limitations are within the highest diameter of sprockets (this restricts using single strand chains) or even the width of the chain (this restricts the usage of multi-strand chains).
? Conditions in the drive together with a determination of the class of load (uniform, reasonable or hefty), severe operating temperatures or chemically aggressive environments should be mentioned.
Abbreviations Utilized in Equations
N Variety of teeth about the substantial sprocket.
n Quantity of teeth about the modest sprocket.
R Velocity in revolutions per minute (rpm) in the huge sprocket.
r Velocity in revolutions per minute (rpm) on the modest sprocket.
C Shaft center distance in chain pitches.
HP Horsepower rating in the drive motor or engine.
KW Kilowatt electrical power rating of drive motor or engine if employing metric units.
SF Service Factor