FA Series TCI Tricone Bit Rubber Sealed Roller Bearing With Gauge Protection
9 7/8" FA537G , TCI Tricone Bit , Sealed Journal Bearing , Geothermal Well Drilling Bit
SIZE AVAILABLE
Form 3 7/8inch to 18 1/2inch
RECOMMENDED DRILLING PARAMETERS FOR APPLICATION
| Types & IADC Code | 417 |
437 447 |
517 527 |
537 547 |
617 627 |
637 | |
| WOB | KN/mm(Bit Dia.) | 0.4~0.9 | 0.4~0.9 | 0.35~1.0 | 0.5~1.0 | 0.6~1.1 | 0.7~1.2 |
| Lb/in. (Bit Dia.) | 2285~5142 | 2285~5142 | 2000~5714 | 2857~5714 | 3428~6285 | 4000~6857 | |
| Rotation Speed (Rpm) | 140~60 | 140~60 | 125~50 | 110~50 | 100~40 | 80~40 | |
The above chart represents commonly available sizes and types, we do produce other sizes and types of rock bits which do not appear on this list. Please contact us for more information.
Three cone bit principle features
- Three cutting cones, each fitted on a leg with suitable bearing
- Legs are welded together to form the cylindrical section
- Section is threaded to make bin
- Each leg provided with an openings that can be reduced with a nozzle to give high jetting fluid velocity
- Factors influencing the design are: type and hardness of formation and size of drilled hole
- Formation hardness dictated the manufacture materials
- High content of nickel steel with molybdenum is used
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