8.5 Inch Metal Journal Sealed Bearing HDD Roller Core Bits For Rock Reamer

1,NAME : roller cores , roller bits , single roller core bits ,etc

2,SIZE : 81/2inch tricone roller bit part ( dia 140mm )

3,TYPE: JS1 and JS2 and two types .

4,JS1 and JS2 difference :The distribution of alloy teeth is different, the number is different, the application of the formation hardness is different, the more alloy teeth, the harder the applicable formation​ .

5,It is used in rotary drilling rig projects of 350 tons and above, such as bridge piles, foundation piles, etc. The core barrel with roller core bits is used for drilling in hard abrasive granite, quartzite, bluestone, limestone and dolomite.

6, roller bit parts details

1)20GrNiMo

2) cutter material : alloy teeth (The best carbide in the country)

3), IADCcode : IADC code 617/637

4),Conical ended shape tooth : shaped like a cone , this tooth shows good crushing resistance with a high rate of penetration , suitable for hard and hard – brittle formations

7, Arm protection structure

Gage structure: Carbide teeth set on the back of the wheel and claw

8,Bearing Structure

High precision roller bearing with two thrust faces. Ball locked cone. Thrust faces hardfaced with friction reducing alloy. Abrasion resistance and seizure resistance of the bearing are improved.

9,Seal and Lubrication

Metal sealed journal bearing type

10, Application

HDD rock drilling rock remaer , hole opener and so on

11, Packing

Packing in fumigation-free wooden cases.
Wooden case size: 30*30*70cm
Number of teeth and PAWS: 5 tablets to a box
For large orders, we can make 50 pieces a box, or customized according to customer requirements.

12, Warranty:

Room temperature storage: 4 years

About:

The company is located in Junziguan Village, Shijing Township, the ancient town of civilization, 156+8 kilometers away from the 106 National Road, with convenient and smooth transportation. Over the years, our company has focused on the design and manufacture of rock reaming bits. Quality and management meet and implement ISO 9001:2015 standards.

The company's production line is equipped with precision machining equipment. The drill bits produced have been industrialized and serialized, and have a large supply capacity. The company has an experienced technical team. Combined with the investigation of domestic and foreign product usage, we will continue to innovate and forge ahead, and aspire to become a leader in rock drill bit design and manufacturing.