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The category

Drilling, exploration, petroleum, drill bits, drilling accessories

The product name

215.9mm metal sealed jianghan insert three cone bit

Product model

FJ517G

Structural characteristics of

1. The floating bearing structure is adopted. The floating element is made of new materials with high strength, high elasticity, high temperature resistance and high abrasion resistance.By reducing the relative linear velocity of the pair of bearings and reducing the temperature rise of the friction surface, the bearing life and bearing reliability can be effectively improved under the condition of high drilling pressure or high rotating speed.

2, the use of high-precision metal seal.The metal seal is designed and processed by a pair of metal seal rings as the bearing axial dynamic seal, and two highly elastic rubber power supply rings are located in the seal area of the tooth palm and the roller respectively as the static seal. The optimized sealing compression quantity ensures that the sealing surface of the two metal rings is always in good contact.

3, steel ball lock roller, adapt to high speed.

4. Adopt all-rubber oil storage capsule that can limit the differential pressure and prevent drilling fluid from entering the lubrication system, which provides good lubrication guarantee for the bearing system.

5. Adopt a new type of grease with high temperature resistance of 250°C and abrasion resistance.

6. Insert bit adopts high-strength and high-toughness hard alloy teeth, optimizes the design of tooth row number, tooth number, tooth exposure height and unique alloy tooth shape, giving full play to insert bit's high abrasion resistance and excellent cutting ability.A new wear-resistant material is applied to weld the tooth surface of the steel tooth bit, which can maintain the high penetration rate of the steel tooth bit and improve the life of the cutting teeth of the bit.