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| Nominal Chain Size |
Material Diameter |
Working Load Limit(Max.) |
Proof Test (Min.) |
Minimum Breaking Force |
Inside Length (Max.) |
Inside Width Range | |||||||
| in | mm | in | mm | lbs | kg | lbs | kN | lbs | kN | in | mm | in | mm |
| 7/32 | 5.5 | 0.217 | 5.5 | 2,100 | 970 | 4.2 | 19.0 | 8,400 | 38.0 | 0.69 | 17.6 | 0.281-0.325 | 7.14-8.25 |
| 9/32 | 7.0 | 0.276 | 7.0 | 3,500 | 1,570 | 7.000 | 30.8 | 14,000 | 61.6 | 0.90 | 22.9 | 0.375-0.430 | 9.53-10.92 |
| 5/16 | 8.0 | 0.315 | 8.0 | 4,500 | 2,000 | 9,000 | 40.3 | 18.000 | 80.6 | 1.04 | 26.4 | 0.430-0.500 | 10.92-12.70 |
| 3/8 | 10.0 | 0.394 | 10.0 | 7,100 | 3,200 | 14,200 | 63.0 | 28,400 | 126.0 | 1.26 | 32.0 | 0.512-0.600 | 13.00-15.20 |
| 1/2 | 13.0 | 0.512 | 13.0 | 12,000 | 5,400 | 24,000 | 107.0 | 48,000 | 214.0 | 1.64 | 41.6 | 0.688-0.768 | 17.48-19.50 |
| 5/8 | 16.0 | 0.630 | 16.0 | 18,100 | 8,200 | 36,200 | 161.0 | 72,400 | 322.0 | 2.02 | 51.2 | 0.812-0.945 | 20.63-24.00 |
| 3/4 | 20.0 | 0.787 | 20.0 | 28,300 | 12,800 | 56,600 | 252.0 | 113,200 | 504.0 | 2.52 | 64.0 | 0.984-1.180 | 25.00-30.00 |
| 7/8 | 22.0 | 0.866 | 22.0 | 34,200 | 15,500 | 68,400 | 305.0 | 136,800 | 610.0 | 2.77 | 70.4 | 1.080-1.300 | 27.50-33.00 |
| 1 | 26.0 | 1.020 | 26.0 | 47,700 | 21,600 | 95,400 | 425.0 | 190.800 | 850.0 | 3.28 | 83.2 | 1.280-1.540 | 32.50-39.00 |
| 1-1/4 | 32.0 | 1.260 | 32.0 | 72,300 | 32,800 | 144,600 | 644.0 | 289,200 | 1288.0 | 4.03 | 102.4 | 1.580-1.890 | 40.00-48.00 |
