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Tricone bit

China

IADC 437

Get Latest Price

-

-

1 Piece

plywood box and steel box

7 to10 days

1000 Piece per Day

T/T, L/C

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Product Description

FJ series metal sealed bearing tricone bit
Cutting structure
The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for steel tooth bit. The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit.
 
Gauge structure
Multiple gauge protection with gauge trimmers on the heel and gauge inserts on the gauge surface of the cone, tungsten carbide inserts and hardfacing on the shirttail increase gauge holding capacity and bearing life.
Bearing structure
High precision journal with two thrust faces, balls lock the cone. Hardfaced head bearing surface. Cone bearing inlaid with friction-reducing alloy and then silver-plated. Abrasion resistance and seizure of the bearing are improved, and suitable of high rotary speed.
Seal and lubrication
The advanced metal seal package consists of two metal seals and elastic energizers. Compressed energizers ensure good contact being kept on two sealing surfaces of metal rings by elastic force, and achieves the bearing seal. In the drilling, metal seals are relatively dynamic, and the energizers are static. This will improve the reliability and durability of bearing seal. The pressure compensator system and advanced grease can greatly increase the lubricating reliability.
Product application
It is suitable for downhole motor and high speed applications.
Current availability
Bit size  
In Mm    Bit type
5 7/8 149.2 FJ517GFJ527GFJ537G, FJ547G, FJ617G
6 152.4 FJ517GFJ527GFJ537G, FJ547G, FJ617G
7 7/8 200.0 FJ517GFJ527GFJ537G, FJ547G, FJ617G,FJ627G,FJ637G
8 1/2 215.9 FJT117GW, FJT127GW, FJT437GK, FJT517G, FJT537G, FJT617GY, FJT627G, FJT637GY
9 1/2 241.3 FJT117GW, FJT127GW, FJT437G, FJT517G, FJT537G, FJT547G, FJT617GY
12 1/4 311.1 FJT117GW, FJT127GW, FJT437G, FJT517G, FJT537G, FJT617GY,  FJT627G,  FJT637GY
14 3/4 374.7 FJT117GW, FJT127GW, FJT437GK, FJT517GK, FJT537GK, FJT547G
16 406.4 FJT117GW, FJT127GW, FJT437GK, FJT517GK, FJT537GK, FJT547G
17 1/2 444.5 FJT117GW, FJT127GW, FJT517G, FJT537G, FJT617GY, FJT627G, FJT637GY
 
Recommended drilling parameters
IADC WOB(kn/mm)
(bit dia)
RPM(r/min) Applicable forations
117 0.35-0.8 240-80 Very soft low compressive strength and high drillability, such as mudstone, clay and chalk,etc.
127 0.35-0.9 240-70 Soft with low compressive strength and high drillablity, such as soft shale, clay, gypsum, mudstone, salt, and soft limestone, chalk, etc
437 447 0.35-0.9 240-70 Very soft with low compressive strength and and high drillability, such as shale, clay, gypsum, mudstone, chalk, sandstone, soft limestone
517 527 0.35-1.0 220-60 Soft with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft shale, soft limestone, etc.
537 547 0.45-1.0 220-50 Soft to medium with low compressive strength, such as medium soft shale, medium soft limestone, medium soft sandstone and medium formation with harder and abrasive interbeds, etc.
617 627 0.45-1.1 200-50 Medium hard with high compressive strength, such as limestone, hard shale, sandstone and dolomite, etc.
637 0.5-1.1 180-40 Hard formation with high compressive strength, such as limestone, dolomite, sandstone, hard gypsum, and marble, etc.

Contact Us

Contact Person : Zijuan

Company:Hejian City Feilong Retop Rock Bit Manuf

Address:Cangzhou, Hebei, China,

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Zijuan < Hejian City Feilong Retop Rock Bit Manuf >
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