GFH637

Design Features and Structure

1. Hybrid cutter layout design improves the wear resistance of the roller cone, specifically engineered for rotary drilling rigs;

2. Reinforced back studs protect the cone body and extend service life;

3. Detachable roller cone bit: only the base needs to be welded onto the drum ring, and one welded base can be used with 3-4 replacement roller cone bits. This saves welding time and, compared with directly welding the roller cone bit, avoids potential damage to the roller cone's sealing rubber ring caused by excessively high welding temperatures, which would otherwise shorten the roller cone's service life;

4. The one-piece base is directly forged, offering high strength and adaptability and allowing repeated use. Its high precision enables a more perfect fit with the bit leg, improving service life.

Bearing

High-precision rolling bearing with ball-lock mechanism; the bearing surface is inlaid with wear-resistant alloy and silver-plated. It offers excellent wear resistance and is suitable for high-speed rotation during drilling.

Sealing and Lubrication System

The circular bearing seal ring is made of HNBR rubber, offering advantages such as wear resistance, oil resistance, and high-speed capability, making it suitable for use under various harsh working conditions.