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Roschen Global
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17 1/2inch IADC127
ROSCHEN
ROS-ST-445
Product Description
Milled Steel Teeth Tricone Bits 17 1/2inch IADC127
Product description:
ROSCHEN Rock Bit Sealed Journal Bearing Tricones are designed for truly important projects and can withstand vast amounts of wear and tear. The floating bushing acts as a self-lubricant helping to reduce friction, and dissipate heat under heavy load conditions. This means our Journal Bearing Tricones can stand up to extremely prolonged and deep drilling sessions with minimal time spent on maintenance or tending to debris.
Tricone Bits with Steel Milled Teeth 17 1/2inch IADC127
Code No. | ROS-ST-445 |
Diameter | 17 1/2'' / 445mm |
Pin Type Dimensions | 7 5/8'' API |
Teeth Type | Steel milled |
IADC No | 445 |
Open Bearing Steel Tooth Tricone Bit
ROSCHEN experience over the last three decades has led to many improvements on this classic bit including our current design, which utilizes field-proven technologies, quality materials, and superior machining and heat treating processes. The result is a precision, high-value bit that produces consistent, lowest-cost-per-foot-drilled results.
Steel milled teeth Tricone drill Bits
Rock formation | Bit type | Bit size | Drilling weight | Rotary speed | ||
mm | inch | kN/mm | r/min | |||
Very soft | Soft Marl, Clays, Sands, Salts etc. | 1 | 187.3~346.1 | 7 3/8~13 5/8 | 441~735 | 120~50 |
soft | Clays, Soft Shale, Marl, Sands, Salts etc. | 2 | 95.2~174.6 | 3 3/4-6 7/8 | 245-490 | 100-50 |
187.3~346.1 | 7 3/8-13 5/8 | 490-784 | 90-40 | |||
Medium soft | Shale, Marl, Sandstone, Soft Limestone etc. | 3 | 95.2~174.6 | 3 3/4-6 7/8 | 245-490 | 80-40 |
187.3~311.1 | 7 3/8- 12 1/4 | 490-784 | 80-40 | |||
medium | Hard Shale, Limestone, Medium/Hard Sandstone etc. | 4 | 95.2~174.6 | 3 3/4-6 7/8 | 294-539 | 80-60 |
187.3~241.3 | 7 3/8-9 1/2 | 539-833 | 60-40 | |||
medium hard | Hard Dolomite, Limestone, Hard Sandy, Rock etc. | 5 | 95.2~174.6 | 3 3/4-6 7/8 | 294-539 | 80-60 |
187.3~241.3 | 7 3/8-9 1/2 | 539-833 | 60-40 | |||
hard | Sandy, Shale, Quartzite, Hard Dolomite, Hard Sandstone etc. | 6 | 95.~-174.6 | 3 3/4-6 7/8 | 294-539 | 80-40 |
187.3-215.9 | 7 3/8-8 1/2 | 580-882 | 60-40 | |||
Very hard | Quartzite, Chert, Basalt Granites, Pyrites etc. | 7 | 95.2-174.6 | 3 3/4-6 7/8 | 294-539 | 80-40 |
Features:
1. Silver plated journal bearings
2. Silver plated thrust and nose washers
3. Pressure compensating grease reservoir
4. Premium synthetic rock bit lubricant optimized for tolerances
5. Specifically designed tungsten carbide insert package
6. Back ream inserts included
7. Compact spacing of inserts provide increased durability for the toughest formations
8. Premium Hard facing Tungsten Carbide provides a tough long lasting coating on Tooth Bits
