11″ SHA117GT
Specifications
Size: 11″ (279.4 mm)
IADC: 117
Bearing and Seal: Journal Bearing / O-Ring rubber seal
No. of Rows: 3-3-2
Inner Row: Wedge mill teeth / 33 pcs
Gauge Row: Wedge mill teeth / 32 pcs
Trimming Row: Wedge / 17 pcs
Bevel Row: Flat / 32 pcs
Pin Connection: 6 5/8 REG
Bit Weight (KG): 74.0
Weight on Bit (KN/mm): 0.35 ~ 0.90
ROP (rpm): 80 ~ 150
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‘- Applied with new tooth bits design, with hardfacing on the tooth surface and bevel of the cones. Attached carbide inserts on the bevel of cones as well to protect the diameter.
– New designed journal bearing applied, which could prolong the bearing’s life a lot and It has the ability to withstand medium drill pressure and adapt to higher rotation speed.
– The new type of fluorinated rubber sealing ring is applied , which is more suitable for the working environment and parameters of the roller cone bit.
– A new type of sealing structure is adopted to match the sealing performance with the bearing, thus greatly improving the working life of the drill bit.
– T feature, there is a trimming row between the gauge row and bevel row to protect the cones and trim the well wall.
