IADC 114 Steel Tooth Tricone Bit
Summary informationINDUSTRY NEWSIND USTRY NEWSI
AffiliateINDUSTRY NEWSIND USTRY NEWSI
Bit Type: 114
Bearing Type: Elastomer Sealed Bearing
Circulation Type： Mud Fluid
Thread Connection： 2 7/8”~7 5/8 API REG
WOB (KN/mm) :0.3-0.75
Applicable Formation:Very soft formations with low compressive strength and high drillability ,such as clay,mudstone,chalk,etc.
This series bit adopts rubber seal with roller bearing ,which is an ideal and economical tool for drilling applications where middle to low WOB and high RPM are required .
The size range of this series bit is from 3 1/2”-26”and IADC varies from 114 to 545 .
MAIN STRUCTURE FEATURES
1. Sealed roller bearing structure. With rollers arranged in grooves recessed in the cone body, the size of the bearing journal is increased,therefore,with the ability of enduring high WOB and applying for high RPM.
2. Thrust bearing surfaces are hardfaced and treated with friction reducing technology .
3.All rubber compensator is used which can limit pressure differential and prevent drilling fluid from entering the lubrication system and this provides the bearing system with good assurance of lubrication .
For ZWT , a row of inserts is added between gage row and heel row to trim borehole wall and protect cone shell .