Numerical values published for Breaking Strength and Working Load Limit are very specific in one point:

• They refer to straight, in-line pull or force and are obtained under laboratory conditions.
• There are, however, many applications where a straight line pull is not possible or even desirable. When a tackle block system is reeved, wire rope may be bent over many sheaves; multiple leg wire rope or chain slings involve differing lifting angles; angular loads on shackles or eyebolts alter Working Load Limits of the equipment used.
• Ail these and other factors influencing the Working Load Limit must be taken into account when systems are designed and used.
• The following examples and tables are intended to highlight and demonstrate the effects of angles on the Working Load Limit.

CHAIN SLINGS, Fabricated entirely from grade 80 alloy components."

Chain Size
9/32” 3/8” 1/2” 5/8” 3/4” 7/8”	3,500 7,100 12, 18,100 28,300 34,200	3,500 7,100 7,100 18,100 28,300 34,200	4,900 10, 17, 25,600 40, 48,400	6,100 12,300 20,800 31,300 49, 59,200	5,200 10,600 18, 27,100 42,400 51,300	7,400 15,100 25,500 38,400 38,400 72,500	9,100 18,400 31,200 47, 73,500 88,900

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