Professional Milled Tooth Drill Bit Sealed Roller Bearing For Soft Formation
12 1/4" FSG124 , Tricone Drill Bit , Milled Tooth Bit , Sealed Roller Bearing , Soft Formation
RECOMMENDED DRILLING PARAMETERS FOR APPLICATION
| Types & IADC Code |
114 115 |
124 125 |
134 135 |
214 215 |
244 245 |
324 325 |
|
| WOB | KN/mm(Bit Dia.) | 0.3~0.75 | 0.3~0.85 | 0.3~0.95 | 0.35~0.95 | 0.35~0.95 | 0.4~1.0 |
| Lb/in. (Bit Dia.) | 1712~4285 | 1715~4857 | 1715~5428 | 2000~5428 | 2000~5428 | 2285~5714 | |
| Rotation Speed (Rpm) | 200~80 | 200~80 | 180~80 | 180~80 | 180~60 | 150~60 | |
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.
Roller-bearing systems
Roller bearings are a common bit-bearing system because they can reliably support large loads and generally perform well in the drilling environment. They are typically used on larger-diameter bits (> 14 in.), which have more physical space to accommodate the rollers. To enhance bearing life, leading manufacturers continually research bearing materials, sizing, and shape.
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