C142 Roller Cone Bits for Rotary Drilling Rigs

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Introduce

C142 Series Replaceable Type

Bearing Structure

Features of C142 Series

1	Journal sealed bearing with TCI protection on heel of cones
2	Bigger cone ,TCI covers full cones, longer working life
3	Shirttail hard enhanced by Tungsten Carbide
4	C142-537 adopts 15mm chisel TCI, C142-637 adopts 14mm conical-ball TCI
5	C142series suit for drilling hard&very hard rock hardness more than 100MPa, bigger diameter TC Inserts brings higher wear resistance and lower inserts breakage rate

Technical specification of roller cone bit C142

Raw Material

Cone

15MnNi4Mo

Arm

20CrNiMo

Tooth

Tungsten Carbide Inserts

Tooth Type

Tooth Qty.&Diameter

45 PCS / 15mm

Tooth Height

Total height: 18.5mm, inside height: 10.5mm, outside height: 8mm

Bearing and Lubrication

Tungsten carbide enhanced on bearing

Grease Lubrication & Bearing Seal

O-ring Seal. Inject grease NOT by vacuum machine

Regular Models


12 1/4"(311.1mm) IADC637G	17 1/2" (444.5mm) IADC537G	12 1/4"(311.1mm) IADC137G	17 1/2"(444.5mm) IADC135G

8 1/2"(215.9mm) PDC Bit	12 1/4"(311.1mm) PDC Bit	Bi Center Bit	PDC Reaming Bits

24" Hole Opener	28" Hole Opener	14" PDC Reamer	18" PDC Reamer

Tricone Bit Thirds	Replaceable Roller Cone Bits	Block Roller Bits	Core Barrel