1. S.U.G SR¡Á¡Á¡Á,SR¡Á¡Á¡ÁG series tricone bit useSealed roller bearing structure. With rollers arranged in grooves recessed in the cone body, the size of the bearing journal is increased.
2. Thrust bearing surfaces are hardfaced and treated with friction reducing technology.
3. Ball locked cone, suitable for high rotary speed.
4. New type of wear resistant grease that can sustain high temperature up to 250¡ãC is utilized.
Characteristic ofPredominance technology
S.U.G SR¡Á¡Á¡Á,SR¡Á¡Á¡ÁG series inserted tricone bit is rubber O-ring sealed roller bearing bit, which is the economical and ideal tool for drilling applications where high RPM and medium to low WOB are required.
S.U.G available sizes and types of SR¡Á¡Á¡ÁG series tri-cone bits:
Large dia. offset crested scoop compacts in inner row, wedge compacts in outer row
Very soft with very low compressive strength, such as shale, clay, sandstone and soft limestone, etc.
SR435
0.20¡«0.70
200¡«80
Large dia. offset crested scoop compacts in inner row, wedge compacts in outer row
Soft with low compressive strength, such as shale, clay, sandstone, soft limestone, salt bed and hard gypsolyte, etc.
SR515
0.25¡«0.80
200¡«80
Offset crested scoop compacts in inner row, wedge compacts in outer row and inequable spaced compacts arrangement
Soft with low compressive strength, such as shale, clay, sandstone, soft limestone, salt bed and hard gypsolyte, etc.
SR535
0.35¡«0.80
200¡«80
Offset crested scoop compacts in inner row, wedge compacts in outer row and inequable spaced compacts arrangement
Medium soft with low compressive strength and harder abrasive stringers, such as hard shale, hard gypsolyte, soft limestone, sandstone and dolomite with stringers, etc.
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