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Oil And Gas Drill Bits , 311.2mm Tricone Rock Roller Bits Conical Insert

FLRT Bit

Oil And Gas Drill Bits , 311.2mm Tricone Rock Roller Bits Conical Insert

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

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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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311.2mm Tricone Rock Roller Bits

      

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