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9 5/8‘’ Iadc 637 Tricone Rock Bit for Hard Drilling Formation Construction

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Product Description

Introduction:

HENGJI BIT SPECIFICATION
Bit Size	9 5/8'' 244.5mm
IADC Code	637
Series	HR
Tooth type	TCI/tungsten carbide insert
Connection	6 5/8 API REG PIN
Bearing	rubber sealed bearing
Nozzle	three jet nozzles
Rotary Speed(rpm)	80~40
Weight on Bit(KN/MM)	0.5~1.2
Application	water well,oil well,HDD,exploration,etc
Formation	Hard formations with high compressive strength,such as sandstone,limestone,dolomite,etc.

Technology

1.Motor hardfacing: Tungsten carbide particle hardfacing is applied liberally along the shirttail and extended up the leading edge of the bit leg for additional protection in high-speed, directional or abrasive applications

2.Seal and Lubrication: The bearing seal is adapting the high quality HNBR O-ring. The best seal compression and the radial seal structure can enhance the seal performance. The compensation system and the high quality bit grease can limit pressure differential, and greatly increase the lubricating reliability.

Features:

1.Nozzle：These nozzles are much sturdier and provide greater flow capacity and maximize fluid distribution to the cones.

2.G-Gauge protection: more tungsten carbide inserts are placed in the gauge to reduce the wear in the abrasive formation. It can protect gauge and increases the stability and life of the bit.

3.Bearing Structure: High precision journal bearing with two thrust faces. Ball locked cone. Hardfaced head bearing surface. Cone bearing inlaid with friction reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved, and suitable for high rotary speed.

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