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BTKG series bit is designed with roller bearing and rubber O-ring seal. This bit can achieve longer footage and higher ROP when drilling under medium to low WOB and high RPM.

Main structure features

Roller bearing structure with rollers arranged in grooves recessed in the cone bodythe size of the bearing journal is increased, therefore, with the ability of enduring high WOB and applying for high RPM.

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.