Once you have the Sling Length and Base dimensions you will plug those numbers into the following equation:Ĭos -1 is the inverse cosine function and should be available on all smartphones today.įirst divide the Base dimension by the Sling Length dimension. Divide this measurement in half and that will be the 'Base' dimension in the diagram below. This will be the 'Sling Length' dimension in the diagram below. The following table shows reduced Working Load Limit for hot galvanized shoulder nut eyebolts using 45 and 90 angles as an example.The length of one leg of the sling from where it attaches to the master link to the bearing point of the end fitting.

this catalog refer to straight line pull only. The Working Load Limits as shown in the Angular loads on shoulder nut eyebolts reduce the tables on page 102 103 (drop forged, hot galvanized) of Working Load Limit. EYEBOLTS If a load is applied at an angle, only shoulder nut eyebolts must be used.

500) cal capacity by the appropriate load angle factor from the when sling legs are at an table at right. If the sling angle is known, the capacity have a reduced capacity of can be readily determined by multiplying the sling's verti 1000 lb. As this A multiple leg sling with a angle decreases, the stress on each leg increases with rated capacity of 2000 lb. Effect of Angles on Sling Capacities The rated capacity of a multiple leg sling is directly affect Example: ed by the angle of the sling leg with the load.

When a tackle block system is reeved, wire rope may be bent over many The following is an example intended to demonstrate the sheaves multiple leg wire rope or chain slings involve dif effects of angles on the Working Load limit. line pull is not possible or even desirable. All these and other factors influencing the Working Load Limit must be taken into account when systems are There are, however, many applications where a straight designed and used.

point: They refer to straight, inline pull or force and are obtained under laboratory conditions. WORKING LOAD LIMITS FURTHER EXPLANATIONS AND CAUTIONS IF LIFTING ANGLES ARE INVOLVED Numerical values published for Breaking Strength and fering lifting angles angular loads on shackles or eyebolts Working Load Limit in the catalog are very specific in one alter Working Load Limits of the equipment used.

Sling angle factor chart