Basics
Procedure 1
MakeN' > 15 T
Provisional selection of one size smaller than that selected for chain and sprocket N' from the provisional selection table
=
Procedure 2
Calculate the static chain tension F m on the chain from the rated kW of the prime motor
No
Knowing the load F t (actual load) on the chain
Yes
Procedure 3
Service factor K s
Speed factor K v
Procedure 4
Sprocket teeth factor K c
Procedure 5
Calculation for design chain tension F t , F' m
No
F' t (or F' m ) < Max. allowable tension =
Reconsider chain size
Yes
Procedure 6
Determine the chain size
Determine the number of teeth N for the large sprocket from the speed ratio i
Distance between shafts and max. shaft diameters have been confirmed by general selection method.
Determine the chain and sprocket
Procedure 7
Calculate the chain length L (number of links)
Procedure 8
Decide the method of lubrication from the rpm of the small sprocket
End
Figure 4.11 Chain Selection Procedure (Slow Speed)
40
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