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Product Details:
Payment & Shipping Terms:
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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: | 637G | Supplementary Features: | G : Reinforced Gauge Protection |
| Color: | Blue | Insert Shape: | Conical |
| High Light: | Oil And Gas Drill Bits,311.2mm Tricone Rock Roller Bits,Tricone Rock Bit Conical Insert |
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IADC 637G , Tricone Rock Bit, Medium Hard Formation , Sealed Friction Bearing , 311.2mm
RECOMMENDED DRILLING PARAMETERS FOR APPLICATION
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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 |
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Lb/in. (Bit Dia.) |
2285~5142 |
2285~5142 |
2000~5714 |
2000~5714 |
2857~5714 |
3428~6285 |
4000~6857 |
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Rotation Speed (Rpm) |
140~60 |
240~70 |
125~50 |
~60 |
110~50 |
100~40 |
80~4 |
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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.
Contact Person: Jade
Tel: 0086-10-63405086
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