Wholesale Tungsten Carbide Insert bits with API and ISO certificate from China factory in stock. Far Eastern Advantage: --The first-class engineers of tricone bits and PDC bits --Advanced technology and Equipment, International standard. --R&D center for rock drilling tools, high precision CNC machines, SGS&ISO&API Certified. --10+ Years & 40+ Countries service experience. --Optimized solutions for various of requirement.
5 7/8"(149mm) API TCI Tricone Roller Bits for Hard Rock Drilling The strength and wear resistance of inserts are improved. 1. Roller bits for Mining and Rock Drilling The strength and wear resistance of inserts are improve by using carbide inserts with high strength and high wear resistance. Surface of the high precision bearing heat treated by using advanced heat treatment process to improve the load capacity and service life of the bearing. The service life of the bearing is further extended by adopting harder and mort wear resistant material for thrust bearing. Preventing reflux structure has dual function, it can avoid air counterflow and dust entering into bearing when the air-compressor stop working accidentally, and separate air and water in order to avoid water entering into bearing when it works normally to prolong the life of bearing.| Basical Specification | |
| Size of Rock Bit | 5 7/8 inches |
| 149.2 mm | |
| Bit Type | TCI Tricone Bit |
| Thread Connection | 3 1/2 API REG PIN |
| IADC Code | IADC 517G |
| Bearing Type | Journal Sealed Bearing with Gauge Protection |
| Bearing Seal | Elastomer or Rubber/ Metal |
| Heel Protection | Available |
| Shirttail Protection | Available |
| Circulation Type | Mud Circulation |
| Drilling Condition | Rotary drilling, high temp drilling, deep drilling, motor drilling |
| Operating Parameters | |
| WOB (Weight On Bit) | 11,684-31,907 lbs |
| 52-142KN | |
| RPM(r/min) | 140~60 |
| Formation | Soft to medium formation with low compressive strength, such as mudstone, gypsum, salt, soft limestone, etc. |
