|
| Brand Name: | FLRT |
| Model Number: | 12 1/4" FG515G |
| MOQ: | 20pcs |
| Supply Ability: | 300pcs per quarter |
12 1/4" Tricone Rock Bit, Water Well Drilling Bit , IADC 515 , Sealed Roller Bearing
RECOMMENDED DRILLING PARAMETERS FOR APPLICATION
| Types & IADC Code | 415 |
435 445 |
515 525 |
535 545 |
615 625 |
635 | |
| WOB | KN/mm(Bit Dia.) | 0.35~0.95 | 0.35~0.95 | 0.4~0.7 | 0.4~0.7 | 0.45~1.1 | 0.5~1.2 |
| Lb/in. (Bit Dia.) | 2000~5428 | 2000~5428 | 2285~4000 | 2285~4000 | 2571~6285 | 2857~6857 | |
| Rotation Speed (Rpm) | 150~60 | 150~60 | 140~80 | 120~80 | 110~60 | 100~50 |
|
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.
