Believe that the majority of oil industry people are very familiar
with the roller cone bit, it is the most common type of drilling
tools used in the modernization of the oil industry, with the
acceleration of our country's modernization, the technical
equipment throughout the oil industry is constantly updated In
order to meet this rapid development trend, our company has
specially introduced equipment with high standard production
specifications. The products not only can meet the various needs in
the domestic industry, but also the calcium products have gained
sufficient international market To be sure, if you are interested
in our roller bit products, we welcome you to contact us anytime
and we will be happy to help you.
· Carefully check the bits appearance and to check the bits
threaded end face,whether the serial number on the box and
· Selection of WOB and RPM should be within the limits of the
recommended parameters, higher WOB and RPM cannot be used
· Drilling process must operate smoothly, find that there is Bie
jump on abnormal phenomenon, should be timely analysis and take
· The bit should be kept indoor with dry and well ventilated
conditions at 10-33℃ and kept from sunshine and rain. Stored under
such conditions, quality of bit is guaranteed for 3 years.
|Bit Diameter||IADC||Applications||Special Features(Cutting Structure,Lug Protection)||Weight||PIN Conn||Operating Suggestions WOB/RPM|
|6 1/4” 159mm||412||Very soft formations with low compressive strengths and high
drillability.||Chisel on gage,conical on inner rows;Hardmetal on lug;Wear
resistant carbide on shirttail lip and lug.||44||20||3 1/2” API||6,250-12,500Ibs/120-90RPM|
Based on the calculating of the load distribution on the bearing
components,all shareate bits incorporate bearings that have optimal
geometry and load distribution designed to give maximum bearing
1. Non-Sealed Bearings
Bearing Type:Roller-Ball-Roller-Thrust Button without seal.
2. Sealed Bearings
Bearing Type:O-Ring Seal-Roller-Ball-Roller-Thrust Button. See
·The seal keeps the mud,cuttings,air and water ouside the bearings.
·The bearing works in lubricant and friction conditions,this
results in less bearing wear and longer bearing life.