Design features and structure
Mixed tooth distribution design, improving the wear resistance of the roller cone, specially designed for rotary excavation engineering and pile foundation drilling;
Bearing
High precision rolling bearing, ball lock mechanism, bearing surface inlaid with wear-resistant alloy and silver plated. It has strong wear resistance and is suitable for high-speed rotation during drilling.

Sealing and lubrication system
The bearing circular sealing ring is made of HNBR rubber, which has the advantages of wear resistance, oil resistance, high rotational speed, and is suitable for use in various harsh conditions.