Specifications
Brand Name :
FLRT
Model Number :
13 3/4" FSA437G
Certification :
API-7-1, ISO 9001:2008
Place of Origin :
China
MOQ :
1~10pcs
Supply Ability :
300pcs per quarter
Delivery Time :
5~45 workdays
Packaging Details :
plywood box / iron box
Bearing Type :
Sealed Roller Bearing
Cutting Material :
TCI
Standard :
API-7-1, ISO 9001:2008
Series :
FG
IADC :
435
Supplementary Features 1 :
G : Reinforced Gauge Protection
Supplementary Features 2 :
T : Trimming Cutter
Description

13 3/4" FSA437G , TCI Bit , Sealed Journal Bearing with Gauge Protection , Tricone Roller Bit , Tricone Drill Bit

RECOMMENDED DRILLING PARAMETERS FOR APPLICATION

Types & IADC Code 417

437

447

517

527

537

547

617

627

637
WOB KN/mm(Bit Dia.) 0.4~0.9 0.4~0.9 0.35~1.0 0.5~1.0 0.6~1.1 0.7~1.2
Lb/in. (Bit Dia.) 2285~5142 2285~5142 2000~5714 2857~5714 3428~6285 4000~6857
Rotation Speed (Rpm) 140~60 140~60 125~50 110~50 100~40 80~40

The above chart represents commonly available sizes and types, we do produce other sizes and types of rock bits which do not appear on this list. Please contact us for more information.

Design of journal bearings

Journal bearings must provide a balanced bearing geometry and adequate journal strength and must maximize the thickness of the high-pressure lubricating film developed during hydrodynamic lubrication. The thickness of lubricating films is affected by:

- Surface areas
- Journal and cone diameters
- Clearances between journal and cone

Manufacturing tolerances must be precise so that surfaces run true. Roundness of journal and cone surfaces is important, and if any part of a bearing is out of round, the effectiveness of the lubrication regime will be adversely affected.

The metallurgy of a bearing must be balanced to minimize heat generation during boundary lubrication. Cone-bearing surfaces are steel. Soft, silver-plated sleeves are installed on the journal. Silver polishes easily, and minor surface irregularities from machining are quickly smoothed. This smoothness ensures low-friction operation and uniform lubricant flow over the bearing surface

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FLRT Tricone Roller Bit , TCI Drill Bit With Trimming Cutter API-7-1 Standard

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Brand Name :
FLRT
Model Number :
13 3/4" FSA437G
Certification :
API-7-1, ISO 9001:2008
Place of Origin :
China
MOQ :
1~10pcs
Supply Ability :
300pcs per quarter
Contact Supplier
FLRT Tricone Roller Bit , TCI Drill Bit With Trimming Cutter API-7-1 Standard

FLRT Bit

Site Member
8 Years
beijing, beijing
Since 1992
Business Type :
Manufacturer, Distributor/Wholesaler, Exporter
Total Annual :
10000000-13000000
Employee Number :
150~200
Certification Level :
Site Member
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