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C120 Series Roller Cutter

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Introduce

C120 Series Weld Type

Bearing Structure

 

Features of C120 Series

1 Journal sealed bearing with TCI protection on heel of cones
2 Cone1、2、3 speed up rock breaking rate
3 Shirttail hard enhanced by Tungsten Carbide
4 C120-637 adopts 12mm conical-ball TCI
5 C120 series suits for smaller core barrel , penetration rate is much higher

For small diameter holes micro piling application, the rock drill bucket is always 400mm, 500mm, 600mm, 700mm, 800mm.
120mm is the cone diameter of 7 7/8" tri-cone bit.

 

Technical specification of roller cone bit C120

Raw Material
Cone 20CrNiMo
Arm 20CrNiMo
Tooth Tungsten Carbide Inserts
Tooth Type
Tooth Qty.&Diameter Cone1: 38PCS / 12mm,    Cone2: 41PCS / 12mm,    Cone3: 44PCS / 12mm
Tooth Height Total height: 14.5mm,    inside height: 8.5mm,    outside height: 6mm
Bearing and Lubrication
Tungsten carbide enhanced on bearing
A Yes  
B Yes  
C No  
Grease Lubrication & Bearing Seal
O-ring Seal. Inject grease NOT by vacuum machine

 

API License Photo


Regular Models

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