Adopt high-precision metal seal. The metal seal consists of a pair of carefully designed and processed metal seal rings as the axial dynamic seal of the bearing. Two highly elastic rubber energy supply rings are respectively located in the tooth palm and the cone sealing area as the static seal. The optimized seal compression ensures that the two The two metal ring sealing surfaces are always in good contact.

3. The steel ball locks the toothed wheel to adapt to high speed.

4. The all-rubber oil storage bag that can limit the pressure difference and prevent the drilling fluid from entering the lubrication system provides a good lubrication guarantee for the bearing system.

5. Adopt a new type of lubricating grease that can withstand 250°C high temperature and wear resistance.

6. The insert drill adopts high-strength and high-toughness cemented carbide teeth, and the optimally designed number of rows, number of teeth, exposed tooth height and unique alloy tooth shape give full play to the high wear resistance and excellent cutting ability of the insert drill. The new wear-resistant material is welded on the tooth surface of the steel tooth drill bit, which improves the life of the cutting teeth of the drill bit while maintaining the high ROP of the steel tooth drill bit.