AL Series, BL Series SELECTION
Step 1 From the Application Table below, determine the type of chain and service factor. Application Table
Chain Speed ft./min.
Type of Chain
Shock
Applications
Service Factor
AL series
Fork lift Suspension of counterweights
1.0 1.3
Moderate
AL and BL series
Less than 100
Mining machinery Construction equipment
BL series
Heavy
1.5
Step 2 Multiply the required working load by the service factor and safety factor below to obtain the design tensile strength. Safety Factor
Chain Speed ft./min.
Maximum Number of Reciprocations
Type of Chain
Safety Factor
AL series BL series
12
Less than 100 Less than 100
Less than 100 per day Less than 1,000 per day
9
Step 3 From the chain list, select a chain having a tensile strength not less than that obtained in Step 2.
Working Load*
Service Factor
Safety Factor
Minimum Tensile Strength
X ≤ *Working Load including weights of attachments, inertia force and impact force. X
When ordering, specify your requirements. • For odd numbers of pitches inner links at both ends will be provided as standard. • For even numbers of pitches a clevis connector or press fit and rivet outer link can be furnished. • Clevis connector or press fit and rivet outer links are both available from stock in popular sizes.
Connection with Clevis: 1. When an inner link is used for the end, a clevis pin is normally supplied by the clevis manufacturer. 2. When an outer link is used for the end, the press fit outer link provides the most integrity.
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