Full Series of Roller Bearing-Rubber Sealing-Inserted Teeth Tri-Cone Bits

Product Features
RRI (Roller Bearing-Rubber Sealing-Inserted Tooth) bits is a kind of ideal and economic tool in high speed well drilling.
Product Features:
-Sealed roller bearing structure is placing the cylinder roller into groove of cone which increases the bearing neck size to load larger WOB and adapt high ROP.
-Surface of thrust bearing is hardening treated and wear reducing treated to improve the loading ability and anti-seizure ability of bearing.
-High strength and high flexible hard alloy teeth are applied to improve the anti-impact performance, reduce tooth breaking rate.
-Optimized milled teeth quantity and teeth arrangement structure give full play to the cutting ability and cutting speed of drill bits.

Conventional Inserted Teeth Tri-Cone Bits
IADC Code AvailableSize AvailableProtodrakonov Scale of HardnessRecommend WOBRecommend RPM
3-7/8"4-3/8"4-5/8"5-1/4"6"7-1/2"8-1/2"8-3/4"9-1/2"12-1/2"
98.4mm111.1mm117.5mm133.4mm152.4mm190.5mm215.9mm222.2mm241.3mm311.1mmKN/mm(Bit OD)
437        f=5~70.35~0.960~150
517      f=6~80.4~0.9560~150
537        f=8~100.75~0.8560~150
637          f=10~120.75~1.2040~70
 2-3/8REG2-7/8REG3-1/2REG4-1/2REG6-5/8REG"√" means regularly available products; other types or sizes shall be custom made accordingly. 
 Thread Connection Available

Factory Tour
Full Series of Roller Bearing-Rubber Sealing-Inserted Teeth Tri-Cone BitsFull Series of Roller Bearing-Rubber Sealing-Inserted Teeth Tri-Cone BitsFull Series of Roller Bearing-Rubber Sealing-Inserted Teeth Tri-Cone BitsFull Series of Roller Bearing-Rubber Sealing-Inserted Teeth Tri-Cone BitsFull Series of Roller Bearing-Rubber Sealing-Inserted Teeth Tri-Cone BitsFull Series of Roller Bearing-Rubber Sealing-Inserted Teeth Tri-Cone BitsFull Series of Roller Bearing-Rubber Sealing-Inserted Teeth Tri-Cone Bits

Full Series of Roller Bearing-Rubber Sealing-Inserted Teeth Tri-Cone BitsFull Series of Roller Bearing-Rubber Sealing-Inserted Teeth Tri-Cone BitsFull Series of Roller Bearing-Rubber Sealing-Inserted Teeth Tri-Cone BitsFull Series of Roller Bearing-Rubber Sealing-Inserted Teeth Tri-Cone BitsFull Series of Roller Bearing-Rubber Sealing-Inserted Teeth Tri-Cone Bits

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