Drop forged chain is either supplied with welded flights or with bolt-on flights (Bolt 'N' Go system). 4B drop forged chains have three main styles: standard, double and triple links.
Drop forged chain is either supplied with welded flights or with bolt-on flights (Bolt 'N' Go system). 4B drop forged chains have three main styles: standard, double and triple links.
| Brand | 4B |
|---|---|
| Part numbers | 4B101.6NA, 4B102LA, 4B102NA, 4B125NA, 4B142LA, 4B142NA, 4B142HA, 4B150NA, 4B160NA, 4B175NA, 4B200NA, 4B216NA, 4B250NA, 4B260NA |
| Min. Breaking Load | Case Depth | Weight/Link | P | H | T | W | M | D | |||
| (kN) | (lb) | (kg) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | |||
| 4B101.6NA | 180 | 40400 | 0.5 mm | 0.35 kg | 101.6 | 36 | 7 | 28 | 12 | 14 | |
| 4B102LA | 150 | 33750 | 0.5 mm | 0.35 kg | 102 | 36 | 6 | 25 | 8 | 14 | |
| 4B102NA | 180 | 40400 | 0.5 mm | 0.35 kg | 102 | 36 | 7 | 28 | 12 | 14 | |
| 4B125NA | 200 | 44900 | 0.6 mm | 0.60 kg | 125 | 35 | 10 | 36 | 15 | 16 | |
| 4B142LA | 250 | 56250 | 0.7 mm | 0.69 kg | 142 | 40 | 10 | 31 | 14 | 18.2 | |
| 4B142NA | 300 | 67500 | 0.7 mm | 1.12 kg | 142 | 50 | 12 | 42 | 18.7 | 25 | |
| 4B142HA | 450 | 101000 | 0.7 mm | 1.70 kg | 142 | 50 | 16.5 | 62 | 28.5 | 25 | |
| 4B150NA | 300 | 67500 | 0.7 mm | 1.16 kg | 150 | 49 | 13 | 36 | 15 | 25 | |
| 4B160NA | 350 | 78700 | 0.8 mm | 1.19 kg | 160 | 44.5 | 13 | 42 | 19.5 | 20 | |
| 4B175NA | 520 | 117500 | 1.0 mm | 2.73 kg | 175 | 60 | 16 | 72 | 22 | 30 | |
| 4B200NA | 600 | 135000 | 1.0 mm | 2.90 kg | 200 | 60 | 18 | 68 | 30 | 30 | |
| 4B216NA | 600 | 135000 | 1.0 mm | 3.70 kg | 216 | 75 | 19 | 59 | 26 | 35 | |
| 4B250NA | 700 | 158000 | 1.0 mm | 4.26 kg | 250 | 75 | 18 | 70 | 32 | 32 | |
| 4B260NA | 700 | 158000 | 1.0 mm | 5.00 kg | 260 | 75 | 21 | 71 | 31 | 32 |
Case hardness: Rockwell C57-C62
Core hardness: Rockwell C40
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Forged ChainsThe Bolt-N-Go flight system is a revolutionary assembly method for drop forged chains. Link and flight assembly is made easy by using a standard bolt and mechanical lock nut with a high…
Forged ChainsSame strength and durability as 4B's standard forged chain links.
Forged ChainsSame quality, strength and durability as 4B's standard links.
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