| Type: | Production Drill |
|---|---|
| Usage: | Well Drilling |
| Certification: | API |
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Specifications
12 1/4" Tungsten Carbide Insert tricone bit IADC 437G with improved metal-sealed bearing
1.the reasonable price
2.fast delivery
3.sufficient stock
4.API certificate
Feilong Retop Rock Bit Manufacture Co.,Ltd was established in 1983. We are dedicated to producing tricone bits, PDC bits. We are professional and sincere. We are looking forward to serving you at any time.
Typical Seal structure
As shown in Figure 1, the typical bimetal seal which is located in the chamber between the cone and the bearing consists of a pair of metal rings and a pair of rubber rings. The two rubber rings always keep the faces of the two metal rings in contact, thereby forming a reliable seal and also playing the role of a radial seal. The function of the cone bit bearing seal is to prevent mud, cuttings, and other substances from entering into the bearing and to maintain the grease acting as lubricant.
Figure 1. Cone bit bearing seal: 1-shaft contour, 2-static rubber ring, 3-static metal ring, 4-moving metal ring, 5-moving rubber ring, and 6-cone inner contour.
New seal structure
Figure 2. demonstrates the seal structure before optimization and the seal structure after optimization.
Figure 2.
| Model | TCI Bit, Steel tooth bit |
| IADC CODE |
116 117 12 6127 136 137 216 217 226 226 316 317 326 327 336 337 115 125 135 215 225 235 315 325 335 114 124 214 314 111 121 131 346 347 |
| 417 427 437 517 527 537 617 627 637 737 837 832 415 425 435 445 525 625 635 416 427 436 446 447 516 526 537 547 516 536 535 | |
| available sizes: | From 2 7/8 to 26" larger sizes for hole opener bit ,reamer bit |
| advantage | most favourable price and best qualtity |
| bearing type: | sealed bearing and non-sealed bearing FJ(metal sealed journal bearing) FA (rubber sealed journal bearing aircooled bearing type |
| Formation or layer | soft ,medium soft ,hard,medium hard,very hard formation |
| Button size (extra features) | Button bit,saw teeth 1) V-Conical teeth 2) L- Long Gauge 3)K- Wide teeth 4)G- Gague protection |
| Material | Alloy steel ,carbide |
| Packing | Wooden case or steel case |
| Payment terms | T/T,L/C,Western union |
| Delivery terms | By sea or by air |
| Delivery time | Within 3 to 7 days |
| Market | Canada, USA,Middle east ,Africa,Europe |
| Application | petroleum&gas ,water well ,mining and tectonic industries ,oil field, construction, geothermal, directional boring, and underground foundation work |
Sizes and types that are not shown above can be customized according to specific drilling requirements.
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