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Roller Cone Bits(NG3) for Rock Piling Core Barrel

Roller Cone Bits(NG3) for Rock Piling Core Barrel

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Technical specification of roller cone bit NG3

Raw Material                                                 
Cone 15MnNi4Mo
Arm 15CrNiMo
Tooth Tungsten Carbide Inserts
Tooth Type                                                
Tooth Qty.&Diameter 49 PCS / 14mm
Tooth (3 Types) Total height: 23mm/21mm/19mm,
inside height: 12mm/11mm/11mm,
outside height: 11mm/10mm/8mm
Bearing and Lubrication                  
Tungsten carbide enhanced on bearing
A Yes  
B Yes  
C Yes  
Grease Lubrication & Bearing Seal
Inject grease by vacuum machine, O-ring Seal


138mm roller cone bit is made by tungsten carbide inserts are full fitting on surface ,it is different from traditional Single cone roller bit that inserts are groove-inserts-groove design.

Steel material of arm and cone is important for the quality, we use 15MnNi4Mo steel for cone, and we use 15CrNiMo steel for arm, it is standard steel material for oil well drilling tricone bit.

Among cone-diameter 133mm roller cone bit in Solidkey, this model is almost the best quality and performance, we have many regular customers from China domestic and South-East Asia,  many deep piling holes are requested in foundation projects for tall building and railway construction.


API Certified factory of Tricone Bits and PDC bits
API is American Petroleum Institute, it is Authoritative in the world.
All products are produced in lines of API specifications.

API License Photo



Regular Models

Roller Cone Bits(NG3) Replaceable Roller Cone Bits Core Barrel
Roller Cone Bits(NG2) Roller Cone Bits(C133) Holder
8 1/2"(215.9mm) IADC637G 9 7/8"(250.8mm) IADC637G 12 1/4" (311.1mm) IADC537G
4 5/8"(117.4mm) IADC216G 9 7/8" (250.8mm) IADC127G 12 1/4" (311.1mm) IADC127G

6"(152.4mm) PDC Bit 12 1/4"(311.1mm) PDC Bit Bi Center Bit
24" Hole Opener 36" Hole Opener 44" Hole Opener
14" PDC Reamer 18" PDC Reamer HDD PDC Reamer
Tricone Bit Thirds Block Roller Bits Block Roller Bits



Oil/Gas Well Drilling-Water Well Drilling-HDD(Trenchless)-Foundation Piling

Our Mission:
Lower the cost of Drilling-Per-Meter.

Who we are:
To exploit energy resources underground.
To exploit water underground.
To install pipelines underground with No-Dig.
To pile foundation for constructions.
We are one of the people who makes above easier.
Let’s work together and enjoy this job.


Related Catagories


Tricone Bits Hole Opener  Roller Cones (Thirds) PDC Bits



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