◆ Collier de forage ◆
? les types de production comprennent: colliers de forage, colliers de forage non magnétiques, rainures hélico?dales usinables et colliers de forage avec rainures d’ascenseur et de glissement;
? divers types de colliers de forage, tels que 120.7158.8165.1177.8203.2209.6228.6241.3, sont fabriqués avec une qualité stable et des performances fiables, et peuvent également produire des produits non standard en fonction des besoins des clients.
◆ Paramètres techniques ◆
Collier de forage No. Nom de code | Outside diameter | Inner diameter | length | Shoulder chamfer diameter | Reference bending strength ratio |
mm | mm | mm | BSR” |
mm | in | +1.59 0 | ±152.4mm | ±0.4 |
|
NC23-31 | 79.4 | 31/8 | 31.8 | 9150 | 76.2 | 2.57:1 |
NC26-35 | 88.9 | 31/2 | 38.1 | 9150 | 82.9 | 2.42:1 |
NC31-41 | 104.8 | 41/8 | 50.8 | 9150 | 100.4 | 2.43:1 |
NC35-47 | 120.7 | 43/4 | 50.8 | 9150 | 114.7 | 2.58:1 |
NC38-50 | 127 | 5 | 57.2 | 9150 | 121.0 | 2.38:1 |
NC44-60 | 152.4 | 6 | 57.2 | 9150/9450 | 144.5 | 2.49:1 |
NC44-60 | 152.4 | 6 | 71.4 | 9150/9450 | 144.5 | 2.84:1 |
NC44-62 | 158.8 | 61/4 | 57.2 | 9150/9450 | 149.2 | 2.91:1 |
NC46-62 | 158.8 | 61/4 | 71.4 | 9150/9450 | 150.0 | 2.63:1 |
NC46-65 | 165.1 | 61/2 | 57.2 | 9150/9450 | 154.8 | 2.76:1 |
NC46-65 | 165.1 | 61/2 | 71.4 | 9150/9450 | 154.8 | 3.05:1 |
NC46-67 | 171.4 | 63/4 | 57.2 | 9150/9450 | 159.5 | 3.18:1 |
NC50-70 | 177.8 | 71/4 | 57.2 | 9150/9450 | 164.7 | 2.54:1 |
NC50-70 | 177.8 | 73/4 | 71.4 | 9150/9450 | 164.7 | 2.73:1 |
NC50-72 | 184.2 | 8 | 71.4 | 9150/9450 | 169.5 | 3.12:1 |
NC50-77 | 196.8 | 81/4 | 71.4 | 9150/9450 | 185.3 | 2.70:1 |
NC50-80 | 203.2 | 9 | 71.4 | 9150/9450 | 190.1 | 3.02:1 |
6 5/8REG | 209.6 | 91/2 | 71.4 | 9150/9450 | 195.6 | 2.93:1 |
NC61-90 | 228.6 | 93/4 | 71.4 | 9150/9450 | 212.7 | 3.17:1 |
7 5/8REG | 241.3 | 10 | 76.2 | 9150/9450 | 223.8 | 2.81:1 |
NC70-97 | 247.6 | 11 | 76.2 | 9150/9450 | 232.6 | 2.57:1 |
NC70-100 | 254 | 31/8 | 76.2 | 9150/9450 | 237.3 | 2.81:1 |
8 5/8REG | 279.4 | 31/2 | 76.2 | 9150/9450 | 266.7 | 2.84:1 |
