Chain Selection For smooth low-speed power transmission at speeds less than 160 ft./min., use the formula below to select optimum chain size.
Chain Speed Coefficient Table
Chain Speed 0 ~ 50 ft./min.
Chain Speed Coefficient 1.0 1.2 1.4
Max. load (lbs.) on chain
X X Service factor
Chain speed coefficient
Max. allowable load (lbs.) on chain
≤
50 ~ 100 ft./min. 100 ~ 160 ft./min.
Table I: Service Factor
Type of Impact
Service Factor
Smooth
1.0
Some impact
1.3
A-44
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