4. How to Select Chains
Procedure 1
Data required for selection
Procedure 2
Service factor K s
Procedure 3
Obtain the design kW
MakeN > 15 T for small sprockets andN< 120 T for large sprockets. Multi-strand factor (Table 4.1) =
Procedures 4-5
Tentatively select the chain size and number of teeth N' for the small sprocket from the provisional selection table
Determine the number of teeth N for the large sprocket from the speed ratio
From the kW rating table, kW rating of the selected chain > design kW
Same size increase in number of teeth
No
1 size up
Yes
No
Fits in the distance between shafts
1 size down 1 strand up
Yes
Procedure 6
Same size increase in number of teeth
No
Fitting on the maximum shaft diameter
Yes
1 size up
Chain and sprocket determined
Procedure 7
Calculate the chain length L (number of links)
Procedure 8
Determine the method of lubrication from rpm of the small sprocket
End
Figure 4.8 Chain Selection Procedure (General Selection)
37
Made with FlippingBook Digital Proposal Creator