联系人 Zijuan
Cangzhou, Hebei
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 | **9.2 | FJ**7G、FJ**7G、FJ**7G, FJ**7G, FJ**7G |
| 6 | **2.4 | FJ**7G、FJ**7G、FJ**7G, FJ**7G, FJ**7G |
| 7 7/8 | **0.0 | FJ**7G、FJ**7G、FJ**7G, FJ**7G, FJ**7G,FJ**7G,FJ**7G |
| 8 1/2 | **5.9 | FJT**7GW, FJT**7GW, FJT**7GK, FJT**7G, FJT**7G, FJT**7GY, FJT**7G, FJT**7GY |
| 9 1/2 | **1.3 | FJT**7GW, FJT**7GW, FJT**7G, FJT**7G, FJT**7G, FJT**7G, FJT**7GY |
| *2 1/4 | **1.1 | FJT**7GW, FJT**7GW, FJT**7G, FJT**7G, FJT**7G, FJT**7GY, FJT**7G, FJT**7GY |
| *4 3/4 | **4.7 | FJT**7GW, FJT**7GW, FJT**7GK, FJT**7GK, FJT**7GK, FJT**7G |
| *6 | **6.4 | FJT**7GW, FJT**7GW, FJT**7GK, FJT**7GK, FJT**7GK, FJT**7G |
| *7 1/2 | **4.5 | FJT**7GW, FJT**7GW, FJT**7G, FJT**7G, FJT**7GY, FJT**7G, FJT**7GY |
| IADC |
WOB(kn/mm) (bit dia) |
RPM(r/min) | Applicable forations |
| **7 | 0.***0.8 | *****0 | Very soft low compressive strength and high drillability, such as mudstone, clay and chalk,etc. |
| **7 | 0.***0.9 | *****0 | Soft with low compressive strength and high drillablity, such as soft shale, clay, gypsum, mudstone, salt, and soft limestone, chalk, etc |
| **7 **7 | 0.***0.9 | *****0 | Very soft with low compressive strength and and high drillability, such as shale, clay, gypsum, mudstone, chalk, sandstone, soft limestone |
| **7 **7 | 0.***1.0 | *****0 | Soft with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft shale, soft limestone, etc. |
| **7 **7 | 0.***1.0 | *****0 | 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. |
| **7 **7 | 0.***1.1 | *****0 | Medium hard with high compressive strength, such as limestone, hard shale, sandstone and dolomite, etc. |
| **7 | 0.**1.1 | *****0 | Hard formation with high compressive strength, such as limestone, dolomite, sandstone, hard gypsum, and marble, etc. |
| 国家: | China |
| 型号: | IADC 437 |
| 离岸价格: | 获取最新报价 |
| 位置: | - |
| 最小订单价格: | - |
| 最小订单: | 1 Piece |
| 包装细节: | plywood box and steel box |
| 交货时间: | 7 to10 days |
| 供应能力: | 1000 Piece per Day |
| 付款方式: | T/T, L/C |
| 產品組 : | - |
