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4 1/4 FA216 Mill Tooth Bit , Tricone Drill Bit With Sealed Journal Bearing
4 1/4 FA216 Mill Tooth Bit , Tricone Drill Bit With Sealed Journal Bearing
Specifications
Brand Name :
FLRT
Model Number :
4 1/4 FA216
Certification :
API-7-1, ISO 9001:2008
Place of Origin :
China
MOQ :
10pcs
Supply Ability :
300pcs per quarter
Delivery Time :
5~45 workdays
Packaging Details :
plywood box / iron box
Bearing Type :
Sealed Journal Bearing
Cutting Material :
Steel Tooth / Milled Tooth
Standard :
API-7-1, ISO 9001:2008
Series :
FA
IADC :
216
Application :
Oil Well Drilling
Description

4 1/4" FA216 , Steel Tooth Tricone Bit , Sealed Journal Bearing , Milled Tooth Bit , Drilling Bit , Deeper Section

PRODUCT SPECIFICATIONS

Bit Size: 4 1/4 inch ( 108 mm)

IADC: 216

SERIES: FA

Tooth type: Milled Tooth / Steel Tooth

Connection: 2 3/8 inch API REG PIN

Nozzle: three jet(side) nozzles

Bit Weight: 6 kgs

RECOMMENDED DRILLING PARAMETERS FOR APPLICATION

Types & IADC Code

116

117

126

127

136

137

216

217

246

247

326

327
WOB KN/mm(Bit Dia.) 0.48~1.0 0.48~1.0 0.48~1.0 0.4~1.0 0.4~1.0 0.55~0.85
Lb/in. (Bit Dia.) 2742~5714 2742~5714 2742~5714 2285~5714 2285~5714 3140~4860
Rotation Speed (Rpm) 160~80 150~70 130~60 100~60 80~50 60~45

Friction bearing


- Nose and outer bearing replaced by friction bearing

Bearing lubrication


- Bearing classified as sealed or non sealed
- Non sealed are lubricated by mud system through the face where the cone meets the journal
- Sealed are lubricated by custom made system built within the leg body
- Lubrication by mud is generally recommended
- Sealed bearing consists of bearing, seal, reservoir and pressure compensator
- The seal is an O-ring type placed at the contact between the cone and the bearing lowermost point
- The reservoir provides lubricants (special grease) to the bearing through a passageway in the leg
- Pressure compensator has a flexible diaphragm operates within a metal protector
- Maintains equal pressure inside and outside bearings
- Equipped with a pressure relief valve
- It protect the bearing seal when heat cause breakdown of grease into gaseous components

Product tags

carbide countersink drill bit

,

under reamer drill bit

,

drill bit reamer chart
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4 1/4" FA216 Mill Tooth Bit , Tricone Drill Bit With Sealed Journal Bearing

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Product Detail
Brand Name :
FLRT
Model Number :
4 1/4 FA216
Certification :
API-7-1, ISO 9001:2008
Place of Origin :
China
MOQ :
10pcs
Supply Ability :
300pcs per quarter
Contact Supplier
4 1/4 FA216 Mill Tooth Bit , Tricone Drill Bit With Sealed Journal Bearing

FLRT Bit

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