1.Specifications and Data:
IADC code | IADC637 |
Bit size | 12-1/4(in) 311.1(mm) |
Thread connections | 6-5/8 API Reg Pin |
Material | Tungsten carbide insert, inlaid friction-reducing alloy |
Rotation speed | 140-60 r/min |
WOB | 0.35~1.0 KN/mm |
Lubrication and seal | Adopt advanced grease |
Pressure control system | The pressure compensator |
Thrust faces | Hardfaced with wear resistant alloy |
Nozzles | Three nozzles, Center nozzle can be customized |
Multiple gauge protection | Yes |
Gauge protection | On the Shirttail: More carbide inserts increase gauge holding capability and bearing life. |
Bearing | Elastomer sealed (rubber sealed) journal bearing Metal-face sealed journal bearing |
Industrial standard of China | SY/T5164 |
Quality management system | API 7-1 |
Bit dimension | 33mm×37mm×52mm |
Bit weight | 107kg |
