Overview: The document provides technical specifications for the Female Double Swivel Shackle (FE.DSS) with both metric and UNC threads. It includes details on dimensions, weight, and working load limits (WLL) under different safety factors (SF).
Specifications:- Metric Threads: The shackle references range from M24 to M52, with WLL varying from 4.50 to 21.00 tons under SF 5:1 and from 5.50 to 21.00 tons under SF 4:1. Torque requirements range from 160 to 600 Nm.
- UNC Threads: The shackle references range from UNC 1’’-8 to UNC 2’’-4.5, with WLL varying from 10,000 to 50,000 lbs under SF 5:1 and from 13,000 to 50,000 lbs under SF 4:1. Torque requirements range from 125 to 450 ft-lb.
Dimensions: Both metric and UNC thread shackles share similar dimensions for certain parameters, such as A, B, C, D, E, F, and G, with slight variations in L Maxi and weight depending on the specific model.
Key Parameters:- Safety Factor (SF): Two safety factors are considered: 5:1 and 4:1, affecting the WLL.
- Torque: Specified in Nm for metric threads and ft-lb for UNC threads, indicating the required torque for secure installation.
- Weight: The weight of the shackles ranges from 5.1 kg (11.24 lbs) to 10 kg (22.05 lbs), depending on the model.
Recommendations: Ensure proper torque application during installation to maintain safety and performance. Select the appropriate shackle based on the required WLL and thread type for specific applications.
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