? Type of input energy (electrical motor, internal combustion engine with mechanical or hydraulic drive).
? Type of gear to get driven.
? Amount of horsepower essential to supply suffi cient energy on the driven shaft.
? Full load speed with the quickest working shaft (rpm).
? Desired speed of the slow operating shaft ( or even the necessary speed ratio). NOTE: If speeds are variable figure out the horsepower to become transmitted at every single speed.
? Diameters in the drive and driven shafts . . . This value could restrict the minimal variety of teeth for your sprockets.
? Center distance from the shafts.
? Note the place and any area limitations that may exist. Normally these limitations are within the maximum diameter of sprockets (this restricts the use of single strand chains) or the width of the chain (this restricts the use of multi-strand chains).
? Conditions with the drive which include a determination of your class of load (uniform, reasonable or hefty), significant operating temperatures or chemically aggressive environments ought to be noted.
Abbreviations Used in Equations
N Variety of teeth over the substantial sprocket.
n Quantity of teeth on the small sprocket.
R Pace in revolutions per minute (rpm) of the large sprocket.
r Pace in revolutions per minute (rpm) from the compact sprocket.
C Shaft center distance in chain pitches.
HP Horsepower rating from the drive motor or engine.
KW Kilowatt electrical power rating of drive motor or engine if working with metric units.
SF Service Factor