Shackles are sized according to the diameter of the bow section rather than the pin size. Never use a shackle if the distance between the eyes is greater than listed in the manufacturer’s tables.
How is ad shackle measured?
Measuring. Measure the outside diameter of the clevis in the saddle of the bow. The outside diameter of the clevis determines the load capacity of the shackle.
How do you calculate shackles?
The formula used to find the Safe Working Load (SWL) of shackles is Diameter of shackle2 x 3. As determined by the vector diagram, the SWL in this example is 5.1 tons. Dividing 5.1 by 3 gives 1.7. The square root of 1.7 is 1.30″.
How much can a 3/4 shackle hold?
Shackles – Quenched & Tempered
| Nominal Size (in.) Diameter of Bow | Carbon Maximum Working Load (Tons) | Alloy Maximum Working Load (Tons) |
|---|---|---|
| 1/2 | 2 | 3.3 |
| 5/8 | 3-1/4 | 5 |
| 3/4 | 4-3/4 | 7 |
| 7/8 | 6-1/2 | 9.5 |
What is the body size of a shackle?
5/8
Country of Origin USA.
What is a 4 part shackle?
Shackle Application, Maintenance and Use A shackle is made up of 4 general components The Bow | Shoulder | Pin | Ear.
What is the length of a shackle?
A shackle, a length of cable or chain equal to 121⁄2 fathoms (75 ft; 22.9 m). In 1949, the British navy redefined the shackle to be 15 fathoms (90 ft; 27 m).
How many meters is shackle?
27.432 meters
A nautical unit used for measuring the lengths of the cables and chains (especially anchor chains), equal to 15 fathoms, 90 feet or 27.432 meters.
How much weight can a 1/2 inch shackle hold?
Shackles – Quenched & Tempered
| Nominal Size (in.) Diameter of Bow | Carbon Maximum Working Load (Tons) | Alloy Maximum Working Load (Tons) |
|---|---|---|
| 7/16 | 1-1/2 | 2.6 |
| 1/2 | 2 | 3.3 |
| 5/8 | 3-1/4 | 5 |
| 3/4 | 4-3/4 | 7 |
