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Brand Name : | FLRT |
Model Number : | 12 1/4" FG515G |
Certification : | API-7-1, ISO 9001:2008 |
Supply Ability : | 300pcs per quarter |
Delivery Time : | 5~45 workdays |
12 1/4" Tricone Rock Bit, Water Well Drilling Bit , IADC 515 , Sealed Roller Bearing
RECOMMENDED DRILLING PARAMETERS FOR APPLICATION
Types & IADC Code | 415 | 435 445 | 515 525 | 535 545 | 615 625 | 635 | |
WOB | KN/mm(Bit Dia.) | 0.35~0.95 | 0.35~0.95 | 0.4~0.7 | 0.4~0.7 | 0.45~1.1 | 0.5~1.2 |
Lb/in. (Bit Dia.) | 2000~5428 | 2000~5428 | 2285~4000 | 2285~4000 | 2571~6285 | 2857~6857 | |
Rotation Speed (Rpm) | 150~60 | 150~60 | 140~80 | 120~80 | 110~60 | 100~50 |
Roller bearings are a common bit-bearing system because they can reliably support large loads and generally perform well in the drilling environment . They are typically used on larger-diameter bits (> 14 in.), which have more physical space to accommodate the rollers. To enhance bearing life, leading manufacturers continually research bearing materials, sizing, and shape.
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