S Series Elastomer Sealed Roller Bearing Bit

Model Number: 8 1/2S215(IADC:215) Brand Name: TRANSTONE Key Specifications/Special Features: Cutting structureThe wear-resistance of teeth is enhanced with premium tungsten carbide hard facing on the tooth surfaces for steel tooth bitThe durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bitGauge structureMultiple gauge protection with gauge trimmers on the heel of cone, tungsten carbide inserts and hard facing on the shirttail increases gauge holding capability and bearing lifeBearing structureHigh precision roller bearing with two thrust facesBalls lock the coneThrust faces hard faced with wear resistant alloyAbrasion resistance and seizure resistance of the bearing are improvedSeal and lubricationPremium HNBR O-ring, optimal seal compression and curved seal structure can enhance the seal performance
The pressure compensator system and advanced grease can greatly increase the lubricating reliability
Product application
It is suitable for various formations and achieves high RPM under low to medium WOB application