? Type of input electrical power (electrical motor, internal combustion engine with mechanical or hydraulic drive).
? Type of products to get driven.
? Amount of horsepower expected to provide suffi cient electrical power towards the driven shaft.
? Full load speed of your quickest running shaft (rpm).
? Desired velocity with the slow running shaft ( or the demanded velocity ratio). NOTE: If speeds are variable establish the horsepower for being transmitted at each speed.
? Diameters on the drive and driven shafts . . . This value could restrict the minimum variety of teeth for that sprockets.
? Center distance of the shafts.
? Note the place and any room limitations that could exist. Usually these limitations are on the optimum diameter of sprockets (this restricts the use of single strand chains) or the width in the chain (this restricts the usage of multi-strand chains).
? Conditions on the drive together with a determination of your class of load (uniform, moderate or heavy), extreme operating temperatures or chemically aggressive environments really should be noted.
Abbreviations Utilized in Equations
N Number of teeth around the massive sprocket.
n Amount of teeth about the little sprocket.
R Speed in revolutions per minute (rpm) of the large sprocket.
r Speed in revolutions per minute (rpm) of your smaller sprocket.
C Shaft center distance in chain pitches.
HP Horsepower rating of your drive motor or engine.
KW Kilowatt energy rating of drive motor or engine if using metric units.
SF Support Factor