Tricone bit diameter is from 3 7/8" to 36 " with IADC code from IADC127 to IADC837.
We have enough stock for all IADC code and model.It can be used for water well ,oil and gas drilling and so on.
Bearing: O-ring sealed Journal Bearing Bit
Application formation:Medium soft with low compressive strength and harder abrasive stringers,such as hard shale,hard gypsolyte,soft limestone,sandstone and dolomite with stringers,etc.
Cutting Structure:Offset crested scoop compacts in inner row,wedge compactsin outer row, imequarble spaced compacts arrangement,and row of trimmers is added between gauge row and heel row.
| Basical Specification | |
| Size of Rock Bit | 12 1/4 inches |
| 311.1 mm | |
| Bit Type | Tungsten Carbide Insert (TCI) bit |
| Thread Connection | 6 5/8 API REG PIN |
| IADC Code | IADC637G |
| Bearing Type | Journal Bearing |
| Bearing Seal | Metal sealed/Rubber sealed |
| Heel Protection | Available |
| Shirttail Protection | Available |
| Circulation Type | Mud Circulation |
| Drilling Condition | Rotary drilling,high temp drilling,deep drilling,motor drilling |
| Total Teeth Count | 260 |
| Gage Row Teeth Count | 75 |
| Number of Gage Rows | 3 |
| Number of Inner Rows | 14 |
| Jounal Angle | 36° |
| Offset | 6.5 |
| Operating Parameters | |
| WOB (Weight On Bit) | 35,053-83,813 lbs |
| 156-373KN | |
| RPM(r/min) | 220~40 |
| Recommended upper torque | 37.93KN.M-43.3KN.M |
| Formation | Medium hard formation with hard and thick interlayer with high drillability. |