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1 Piece
Tianjin, China
500
L/C, T/T, D/P, Western Union, Paypal
Customized
API
Center Drill Bit
Tungsten Carbide
Well Drilling
New
| Quantity: | |
|---|---|
The Roller bit mainly used for Rock reamer (Hole opener) For HDD (Horizontal directional drilling ) Trenchless technology.
Full cutter layout (Starry Sky Roller Bit), fast assembly way of bit leg avoid the heating problem of soldering, which extends the lifetime of bearing. Replaceable Cutter rock reamer is designed for a big rig and big hole drilling, fit for all sorts of rock formation.
High precision bearing surface heat treatment adopts advanced heat treatment technology to improve the bearing capacity and service life.
IADC Code: | 6-3-7 |
Bearing: | Journal bearing |
Sealing: | O-ring |
Cutting structure: | Conical |
Rows/Qty: | 7/52 |
Shirttail/Lug | Welding carbide & adding inserts |
Bearing Structure
High precision journal bearing with two thrust faces. Ball locked cone. Hardfaced head bearing surface. Cone bearing inlaid with friction reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved, and suitable for high rotary speed.
Cutting Structure
Reinforcing the comprehensive mechanical properties of cutting tooth by using high quality tungsten carbide inserts of new formula and new techniques of insert bit.
Gauge Structure
The multiple heel position with gauge trimmer on the heel, tungsten carbide and hardfacing on the shirttail, strengthened spear point will enhance the gauge protection.
The Roller bit mainly used for Rock reamer (Hole opener) For HDD (Horizontal directional drilling ) Trenchless technology.
Full cutter layout (Starry Sky Roller Bit), fast assembly way of bit leg avoid the heating problem of soldering, which extends the lifetime of bearing. Replaceable Cutter rock reamer is designed for a big rig and big hole drilling, fit for all sorts of rock formation.
High precision bearing surface heat treatment adopts advanced heat treatment technology to improve the bearing capacity and service life.
IADC Code: | 6-3-7 |
Bearing: | Journal bearing |
Sealing: | O-ring |
Cutting structure: | Conical |
Rows/Qty: | 7/52 |
Shirttail/Lug | Welding carbide & adding inserts |
Bearing Structure
High precision journal bearing with two thrust faces. Ball locked cone. Hardfaced head bearing surface. Cone bearing inlaid with friction reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved, and suitable for high rotary speed.
Cutting Structure
Reinforcing the comprehensive mechanical properties of cutting tooth by using high quality tungsten carbide inserts of new formula and new techniques of insert bit.
Gauge Structure
The multiple heel position with gauge trimmer on the heel, tungsten carbide and hardfacing on the shirttail, strengthened spear point will enhance the gauge protection.
