Product No.4031
Posted under: 
Three-cone steel tooth bit
The bit is sealed with sliding bearing rubber, which can withstand high woB at conventional speeds and adapt to different cutting structures Soft to medium hard formations.
Bit size range 4 5/8——26Inch,
IADC code：11-127-136-115-217.
Structural features:
In the form of sliding bearing, hard alloy layer is surfacing on the surface of the tooth palm shaft, and silver is plated on the inner hole of the tooth wheel to improve the bearing capacity and anti-bite capacity.
Bearing O-ring adopts wear-resistant, high temperature resistant high saturated butadiene rubber, increasing the sealing ring section to reduce the sealing pressure, the outer end of the seal boss to improve the reliability of the seal.
The use of all-rubber oil storage capsules to limit the differential pressure and prevent drilling fluid from entering the lubrication system to provide good lubrication for the bearing system.
The steel bit tooth surface is welded with new wear-resistant material, which can keep the high drilling speed of steel bit and prolong the service life.
A row of protective rollers and dressing shaft wall teeth are inserted between the outer row teeth and the back cone teeth to form a unique HAT series bit.