Roller Cone

Reliable and stable sealing structure,metal seal and rubber seal optional.

The palm bearing surface is hard-coated with a hard alloy layer,and the roller bearing is silver-plated,which improves the bearing capacity and the resistance to seizure.

Adop high-strength and high-toughness semeted carbide theeth to improve the impact resistance of theeth and reduce the rate of broken teeth.

Palm back alloy full coverage improves the abrasion resistance of the palm.

Medium soft with low compressive strength and harder abrasive stringers,such as hard shale,hard gypolyte,soft limestone,sand-stone and dolomite with stringers etc.