? Type of input power (electrical motor, internal combustion engine with mechanical or hydraulic drive).
? Type of tools to be driven.
? Amount of horsepower essential to supply suffi cient electrical power for the driven shaft.
? Full load speed in the fastest operating shaft (rpm).
? Desired pace of your slow running shaft ( or the expected velocity ratio). NOTE: If speeds are variable identify the horsepower to become transmitted at every pace.
? Diameters from the drive and driven shafts . . . This worth may restrict the minimal variety of teeth for the sprockets.
? Center distance from the shafts.
? Note the place and any space limitations that may exist. Normally these limitations are about the maximum diameter of sprockets (this restricts the usage of single strand chains) or even the width of your chain (this restricts the usage of multi-strand chains).
? Conditions on the drive together with a determination in the class of load (uniform, reasonable or heavy), significant operating temperatures or chemically aggressive environments really should be noted.
Abbreviations Used in Equations
N Quantity of teeth about the big sprocket.
n Amount of teeth within the modest sprocket.
R Velocity in revolutions per minute (rpm) with the significant sprocket.
r Speed in revolutions per minute (rpm) on the smaller sprocket.
C Shaft center distance in chain pitches.
HP Horsepower rating with the drive motor or engine.
KW Kilowatt electrical power rating of drive motor or engine if making use of metric units.
SF Service Factor