? Type of input energy (electrical motor, internal combustion engine with mechanical or hydraulic drive).
? Type of equipment to get driven.
? Amount of horsepower essential to supply suffi cient electrical power on the driven shaft.
? Full load velocity on the fastest operating shaft (rpm).
? Desired speed in the slow operating shaft ( or even the expected velocity ratio). NOTE: If speeds are variable establish the horsepower to be transmitted at each and every speed.
? Diameters of your drive and driven shafts . . . This worth may possibly restrict the minimum variety of teeth to the sprockets.
? Center distance of your shafts.
? Note the position and any area limitations that could exist. Normally these limitations are around the greatest diameter of sprockets (this restricts the use of 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, moderate or hefty), significant working temperatures or chemically aggressive environments should be mentioned.
Abbreviations Used in Equations
N Amount of teeth around the large sprocket.
n Number of teeth around the modest sprocket.
R Velocity in revolutions per minute (rpm) from the large sprocket.
r Speed in revolutions per minute (rpm) with the modest sprocket.
C Shaft center distance in chain pitches.
HP Horsepower rating from the drive motor or engine.
KW Kilowatt power rating of drive motor or engine if applying metric units.
SF Service Factor