? Type of input power (electric motor, inner combustion engine with mechanical or hydraulic drive).
? Type of equipment to become driven.
? Amount of horsepower needed to supply suffi cient energy to the driven shaft.
? Full load pace of your quickest working shaft (rpm).
? Desired velocity from the slow operating shaft ( or even the expected velocity ratio). NOTE: If speeds are variable decide the horsepower to become transmitted at just about every velocity.
? Diameters in the drive and driven shafts . . . This worth may perhaps restrict the minimum amount of teeth to the sprockets.
? Center distance with the shafts.
? Note the place and any room limitations that could exist. Generally these limitations are within the highest diameter of sprockets (this restricts the use of single strand chains) or the width from the chain (this restricts the usage of multi-strand chains).
? Conditions with the drive which include a determination on the class of load (uniform, moderate or heavy), severe working temperatures or chemically aggressive environments must be mentioned.
Abbreviations Used in Equations
N Variety of teeth about the significant sprocket.
n Amount of teeth about the smaller sprocket.
R Speed in revolutions per minute (rpm) from the substantial sprocket.
r Velocity in revolutions per minute (rpm) from the smaller sprocket.
C Shaft center distance in chain pitches.
HP Horsepower rating of the drive motor or engine.
KW Kilowatt electrical power rating of drive motor or engine if utilizing metric units.
SF Services Factor