RR-C-271F
TABLE XXI. Type VII, class 3, jaw and eye swivels.
Trade size (nom) (inch) |
Length (L) (min) (inch) |
Width (W) (nom) (inch) |
Jaw opening (J) (min) (inch) |
Pin dia. (P) (min) (inch) |
Weight per 100 (approx) (pounds) |
Working load limit (pounds) |
Proof load (min) (pounds) |
Breaking load (min) (pounds) |
1/4 5/16 3/8 1/2 5/8 3/4 7/8 1 1-1/8 1-1/4 1-1/2 |
2.438 2.812 3.5 4.5 5.312 6.062 7 8.25 8.938 9.438 14.25 |
0.75 1 1.25 1.5 1.75 2 2.25 2.5 2.75 3.125 4 |
0.469 0.5 0.625 0.75 0.938 1.125 1.188 1.75 1.75 2.062 2.875 |
0.25 0.312 0.375 0.5 0.625 0.75 0.875 1.125 1.125 1.375 2.25 |
21 34 62 125 235 350 575 950 1,100 1,575 5,475 |
800 1,200 2,200 3,500 5,200 7,100 9,200 11,600 15,000 18,000 45,000 |
1,600 2,400 4,400 7,000 10,400 14,200 18,400 23,200 30,000 36,000 90,000 |
4,000 6,000 11,000 17,500 26,000 35,500 46,000 56,200 75,000 90,000 225,000 |
3.4.7 Type IX, bead-chain fasteners (standard couplings with eyelets). The bead-chain fasteners shall be made of brass, corrosion resistant steel (CRES), or steel, shall be similar to figure 27,
and shall be in accordance with the dimensions and physical requirements as shown in table XXII.
FIGURE 27. Type IX, bead-chain fastener. TABLE XXII. Type IX, bead-chain fasteners.
|
Trade no. |
Size of chain used with (inch) |
Length overall (approx) (inches) |
Diameter of hole in eye (approx) (inch) |
Weight per 100 couplings (approx) (pounds) |
6 - AD 10 - A 10 - AD 13 - AN 20 - A |
1/8 3/16 3/16 1/4 3/8 |
0.406 0.5 0.562 0.688 1.031 |
0.125 0.125 0.188 0.188 0.25 |
0.100 0.187 0.250 0.312 1.320 |
3.4.8 Type X, bead chain couplings. The bead-chain couplings shall be made of brass, CRES, or steel, shall be similar to figure 28, and shall be in accordance with the dimensions and physical requirements as shown in table XXIII.
30
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