1. Metal-face sealed bearing TCI Bit
The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit.
Multiple gauge protection with gauge trimmers on heel and gauge inserts on the gauge surface of the cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.
Sealed Bearing Structure
1. Abrasion resistance and seizure resistance of the bearing are improved and suitable for high rotary speed.
2. The advanced metal seal package will improve the reliability and durability of bearing seal.
Size: 6', 6 1/2', 7 1/2', 8 1/2', 9 1/2', 9 5/8', 9 7/8', 12 1/4', 17 1/2', etc.
IADC Code: 4- Series, 5- Series, 6- Series, etc.
Tricone bit Cuttingstructure: very long widely spaced , chisel-shaped inserts and considerable coneaxis offset against center line of bit ensure very high penetration rate . Tosecure the bit from diameter loss, the gage protection inserts have got shorterlength and greater angle of the top. Formations: long intervals of very softpoorly compacted shale, sandstone, clays, salts and soft mestones. Size andIADC available: 2 7/8 to 26 IADC 114 117 216 217 317 321 417437 517 537 617 637 and so on.