? Type of input power (electric motor, inner combustion engine with mechanical or hydraulic drive).
? Type of gear for being driven.
? Amount of horsepower necessary to provide suffi cient electrical power on the driven shaft.
? Full load velocity on the quickest working shaft (rpm).
? Desired speed with the slow running shaft ( or the needed pace ratio). NOTE: If speeds are variable establish the horsepower to get transmitted at every speed.
? Diameters in the drive and driven shafts . . . This worth may possibly restrict the minimum quantity of teeth for that sprockets.
? Center distance of the shafts.
? Note the place and any area limitations that may exist. Commonly these limitations are over the greatest diameter of sprockets (this restricts using single strand chains) or the width with the chain (this restricts the usage of multi-strand chains).
? Conditions with the drive which includes a determination on the class of load (uniform, reasonable or hefty), significant operating temperatures or chemically aggressive environments need to be noted.
Abbreviations Utilized in Equations
N Variety of teeth around the significant sprocket.
n Amount of teeth around the compact sprocket.
R Velocity in revolutions per minute (rpm) from the huge sprocket.
r Velocity in revolutions per minute (rpm) of the smaller sprocket.
C Shaft center distance in chain pitches.
HP Horsepower rating on the drive motor or engine.
KW Kilowatt power rating of drive motor or engine if making use of metric units.
SF Services Factor