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| Bearing Type: | Sealed Journal Bearing With Gauge Protection | Cutting Material: | TCI |
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| Standard: | API-7-1, ISO 9001:2008 | Series: | FA |
| IADC: | 617 | Supplementary Features: | G : Reinforced Gauge Protection |
| FA: | FLRT Sealed Journal Bearing Bit | Drill Rig Type: | With Pump ( Such As Mud Pump ) |
| Cooling System: | Fluid Circulation ( Water Or Mud ) | ||
| High Light: | Medium Hard Formation TCI Tricone Bit,hdd Jetted Bit IADC 617,Three Nozzles Tricone Rock Bit |
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Rock Bit , Medium Hard Formation , Three Nozzles , Jetted Bit , TCI Bit , TRC Bit
RECOMMENDED DRILLING PARAMETERS FOR APPLICATION
| Types & IADC Code | 417 |
437 447 |
517 527 |
517 527 |
537 547 |
617 627 |
637
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| WOB | KN/mm(Bit Dia.) | 0.4~0.9 | 0.4~0.9 | 0.35~1.0 | 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 | 2000~5714 | 2857~5714 | 3428~6285 | 4000~6857 | |
| Rotation Speed (Rpm) | 140~60 | 240~70 | 125~50 | ~60 | 110~50 | 100~40 | 80~4 | |
ROLLER CONE BIT BEARING ASSEMBLY
The cones of a roller cone bit are mounted on journals. There are three types of bearings used in these bits:
1. Roller bearings, which form the outer assembly and help to support the radial loading (or WOB)
2. Ball bearings, which resist longitudinal or thrust loads and also help to secure the cones on the journals
3. A friction bearing, in the nose assembly which helps to support the radial loading. The friction bearing consists of a special bushing pressed into the nose of the cone. This combines with the pilot pin on the journal to produce a low coefficient of friction to resist seizure and wear.
Contact Person: Jade
Tel: 0086-10-63405086
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