A-A-52540
3.1.1.1 Dissimilar metals. Dissimilar metals shall not be used in intimate contact with each other unless protected against galvanic corrosion.
3.2 Sleeves and ferrules. The sleeves and ferrules shall be designed to be swaged to the applicable size wire rope when using a swaging machine and using dies that are compatible with both the machine and fittings. After swaging with a force of not more than 4448 kN (500 st) the sleeves and ferrules shall withstand the pulls specified in table I without separation, slipping, or cracking.
TABLE I. Strength of sleeves, ferrules, and ferrule connectors.
Wire rope size diameter mm (in) |
Minimum breaking strength of test Newtons (N) (pounds (lb)) |
|
6 (0.25) 8 (0.313) 10 (0.375) 13 (0.5) 16 (0.625) 19 (0.75) 22 (0.875) 25 (1) 29 (1.125) 32 (1.25) 35 (1.375) 38 (1.5) |
26154 40744 58358 102304 159238 227738 307802 399430 502624 617382 742816 879814 |
(5880) (9160) (13,120) (23,000) (35,800) (51,200) (69,200) (89,800) (113,000) (138,800) (167,000) (197,800) |
3.3 Type I - sleeves. The sleeves shall be as shown on figure 1 and as specified herein.
3.4 Type II - ferrules. The ferrules shall be as shown on figure 2 and as specified herein. The bore shall be smooth or have spiral flukes or grooves to fill the space between the wire rope strands before swaging. The ferrules, before swaging, shall provide the close fit with the wire rope but shall not require more than light blows with a hammer to drive them onto the end of the wire rope.
3.5 Type III - ferrule connectors. The ferrule connectors shall be for 35 mm (1.375 in) and 38 mm (1.5 in) wire rope sizes and shall be as shown on figure 3 and as specified herein. The connector shall accept the wire rope ferrules in 35 mm (1.375 in) and 38 mm (1.5 in) sizes. The connector shall not require the use of bolts, pins, or similar devices for attaching the connector to the wire rope ferrules and shall not require more than 15 seconds for installation or removal of
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