CALL US
+86-13161769999
You can contact us any way that is convenient for you
Cangzhou Great Drill Bits Co.,Ltd. REQUETS A QUOTE
Cangzhou Great Drill Bits Co.,Ltd.
Cangzhou Great Drill Bits Co.,Ltd.
Contact Us
90 ° U-shaped Roller Bit

Single Cone Rock Roller Drill Bit for core barrel pilot bit

Overview of Roller Bit


GREAT has customized manufacture several types of roller bit. It is including 90 ° U-shaped Roller Bit, 120 ° U-shaped Roller Bit and Starry Sky Roller Bit.

The 90 ° U-shaped Roller Bit is straight legs of tritone bit, it is a special model made by GREAT. 


But also we have designed roller bit with foundation, it can replaceable the roller bit, in this case, you will not worry welding on the rock reamers. Because welding the roller bit on the rock reamers, is a high technology, to control the temperature. Our roller bit also fit for all sorts of rock formation. 


High precision bearing surface heat treatment adopts advanced heat treatment technology to improve the bearing capacity and service life.


The roller bit has metal sealed bearing and rubber sealed bearing.


The Details of Roller Bit


the details of roller bit


The Advantage of Roller Bit


The cone units of Great Roller Cone Cutters are replaceable and each main body of the Hole Openers can be used many times, thus saving the cost for the customer. 


The strength and wear resistance of inserts is improved by using carbide inserts with high strength and high wear resistance.


For steel tooth drills, the tooth surface is hard and has new wear resistance.


The material thus extends the life of the cutting structure while still maintaining a high ROP.



the advantage of-roller bit


90 ° U-shaped Roller Bit Advantages:


  1. Bearing with high saturated nitrile rubber reduces sealing pressure and improves sealing reliability.

  2. G-Gauge protection improves the gauge ability and prolong the service life of the bit.

  3. A row of teeth is added between the back taper and the outer row to dress the wellbore and protect the body of the cone.

  4. The application of engineering plate holder makes the construction more convenient and quick.



client feedback 1

client feedback 2


We will contact you within 24 hours.
Recent Products
  • PDC Core Bit

    PDC Core Bit

    GREAT customized made Diamond core bits ,which including Matrix body and Steel body
  • Bi-center Bit

    Bi-center Bit

    This type of Bi-center bit mainly used for medium to medium hard compressive and abrasive formation.
  • PDC Cutter

    PDC Cutter

    Popular Size: 1305, 1308,1613,1616,1913
  • Steel Tooth Bit

    Steel Tooth Bit

    Steel tooth drills are suitable for extremely soft formations with low compressive strength and high drillability such as clay, mudstone, chalk, etc..