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sealed bearing oil well hard rock tci tricone drill bit

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Product Overview

factory 8 1/2" sealed bearing oil well hard rock tci tricone drill bit

The Advantages of Using a Tri Cone Over Other Drill Bits
1)There is a Tri Cone suitable for any rock formation
2) Tricone bit is versatile and can handle changing formations
3)Tri Cones are reasonably priced, long lasting and have an efficient drilling rate
4)Tricone is that the roller cones have high end sealed bearings; extremely high quality tungsten carbide and diamond gauge
protection throughout the drill bit as well as skirt tail hard facing and optimized hydraulics. These roller cone drill bits are
designed to go to extreme depths in extreme conditions and in situations where they cannot fail.
Basical Specification
Size of tricone bit
8 1/2" inch (215.9 mm)
Thread Connection
4 1/2" API reg pin
Bearing type
rubber o-ring journal bearing
Operating Parameters
0.35~1.05 KN/mm (bit Dia.)
Rotary speed
110~40 r/min 
Make up torque
16.3-21.7 KN.M
Formation: Medium formation with high compressive strength ,and high drillability ,such as mudstone,gypsum,salt,soft limestone,etc.
Palm back alloy full coverage
Protection the bearing ,prevent the sand  and rock into bearing , and protect the arm
Hard-coated with a hard alloy layer
This can reduce the bearing wear and greatly improve the service life of the bit

Hard alloy nozzle

Hard alloy nozzle Can control the flow of water, reduce the heat in the process of the bit, increase the service life of the bit

Cutting Structure
The wear-resistance of the teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for the steel tooth bit.

The durability of permium tungsten carbide inserts is improved with new formulas and new techniques for insert bit.



We achieve this commitment by developing a network of qualified suppliers in the country, providing the fastest response to customer needs and complaints, and timely delivery of goods.


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