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| Categories | Tricone Rock Bit |
|---|---|
| Brand Name: | FLRT |
| Model Number: | 12 1/4" FA637G |
| Certification: | API-7-1, ISO 9001:2008 |
| Place of Origin: | China |
| MOQ: | 20pcs |
| Supply Ability: | 300pcs per quarter |
| Delivery Time: | 5~45 workdays |
| Packaging Details: | plywood box / iron box |
| Bearing Type: | Sealed Journal Bearing With Gauge Protection |
| Cutting Material: | TCI |
| Standard: | API-7-1, ISO 9001:2008 |
| Series: | FA |
| IADC: | 637G |
| Supplementary Features: | G : Reinforced Gauge Protection |
| Color: | Blue |
| Insert Shape: | Conical |
| Company Info. |
| FLRT Bit |
| View Contact Details |
| Product List |
IADC 637G , Tricone Rock Bit, Medium Hard Formation , Sealed Friction Bearing , 311.2mm
RECOMMENDED DRILLING PARAMETERS FOR APPLICATION
Types & IADC Code | 417 | 437 447 | 517 527 | 517 527 | 537 547 | 617 627 | 637 | |
WOB | KN/mm(Bit Dia.) | 0.4~0.9 | 0.4~0.9 | 0.35~1.0 | 0.35~1.0 | 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
Journal bearing bits do not have roller bearings.
The cones are mounted directly onto the journal.
This offers the advantage of a larger contact area over which the load is transmitted from the cone to the journal.
The contact area is specially treated and inlaid with alloys to increase wear resistance.
Only a small amount of lubrication is required as part of the sealing system.
Ball bearings are still used to retain the cones on the journal.
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