8 1/2 IADC 537 Tricone Bit / Rock Roller Bit

Tri-cone BitsMetal Sealed Bearing Tri-cone Bits----Cutting Structure Steel Tooth: Premium tungsten carbide hard facing on the surface, it's greatly enhance the wear resistance of the tooth. Tungsten Carbide Inserts: Various type high quality tungsten carbide inserts can Be equipped on the bits, professional and scientific selection of the inserts as per The different application and drilling process so that to achieve high efficient drilling production. ----Gauge Structure 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. ----Bearing Structure Journal bearing and roller bearing types are available to be chosen. Abrasion & seizure resistance, loading capacity, stability of the bearing are well improved, suitable for high speed rotary drilling. ----Seals and Lubrication The advanced metal seals improve the reliability and stability of the bearing sealing. Pressure difference type compensating system assures a good greasing lubrication function. ---- IADC vary from 117--637 applicable for different type formation. Elastomer Sealed Bearing Tri-cone Bits----Cutting Structure Steel Tooth: Premium tungsten carbide hard facing on the surface, it's greatly enhance the wear resistance of the tooth. Tungsten Carbide Inserts: Various type high quality tungsten carbide inserts can be equipped on the bits, professional and scientific selection of the inserts as per the different application and drilling process to achieve high efficient drilling production. ----Gauge Structure 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. ----Bearing Structure Journal bearing and roller bearing types are available to be chosen. Abrasion & seizure resistance, loading capacity, stability of the bearing are well improved, suitable for high speed rotary drilling. ----Seals and Lubrication Premium O-ring, Optimal seal compression and curved seal structure can enhance the seal performance. Pressure difference type compensating system assures a good greasing lubrication function. ---- IADC vary from 114--637 applicable for different type formation and different drilling rotary speed. Non-Sealed Roller Bearing Tri-cone Bits----Cutting Structure Steel Tooth: Premium tungsten carbide hard facing on the surface, greatly enhance the wear resistance of the tooth. ----Bearing Structure Non-sealed roller bearing. Drilling fluid can enter the bearing directly for cooling; Balls lock the cone which reduces the probability of cone dropping to minimum ---- IADC vary from 114--321 applicable for the hole drilling in the upper section With good drillability. Air Cooling Roller Bearing Tri-cone Bits----Cutting Structure Tungsten Carbide Inserts: Various type high quality tungsten carbide inserts can be equipped on the bits, professional and scientific selection of the inserts as per the different application and drilling process to achieve high efficient drilling production. ----Gauge Structure Multiple gauge protection with gauge inserts on the gauge surface of the cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability. ----Bearing Structure Air cooling roller bearing package. Balls lock the cone, which reduces the probability of cone-dropping to minimum. ---- IADC vary from 512--732 applicable for mining. ProductTricone BitModelTCI BIT, STEEL TOOTH BIT  IADC CODE 116 117 126 127 136 137 216 217 226 316 317 326 327 336 337 115 125 135 215 225 235 315 325 335 114 124 214 314 111 121 131 346 347417 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  535available sizesFrom 2 7/8 to 26"larger sizes for hole opener bit ,reamer bitadvantagemost favorable price and best qualitybearing typesealed bearing and non-sealed bearingmetal sealed journal bearingrubber sealed journal bearingaircooled bearing typeFormation or layerSoft, medium soft, hard, medium hard, very hard formationButton size (extra features)Button bit, saw teeth1) Y-Conical teeth  2) X-chisel teeth3)K- wide teeth4)G- Gauge protectionPackingWooden caseDelivery termsBy sea or by airMarketCanada, USA, Middle east ,Africa, EuropeApplicationPetroleum & gas ,water well ,mining and tectonic industries ,oil field, construction, geothermal, directional boring, and underground foundation work  Related Product Our Company & Service Glorytek Industry (Beijing)Co.,Ltd., located inBeijing,China, is an integrated corporation specialized in manufacturing and exporting top quality drilling equipment and drilling parts for decades. We are supported and assisted by a highly experienced team of designers and engineers that enable us to complete all the assigned projects successfully as