Sign In | Join Free | My frbiz.com |
|
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.
![]() |