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Feilong retop rock bit manufacture company
 
 
Recommended Results 
 
8 1/2 tricone bit/rock bit/roller bit/drill bit 

  产品分类 : 機械與設備->工具、刀具、模具->端銑刀->鑽頭

     
8 1/2 tricone bit/rock bit/roller bit/drill bit
 
 
         

  产品规格
 
Model No:    IADC 437
  Country  CN
  Brand  FLRT
  Materials  Hard alloy with TCI tooth
  Size  sizes range from 3 3/8" to 26"  inches  
  Color  blue or customize
  Packing  wooden box or metal trunk
  Minimum Order  1
  Payment Term  L/C or TT

 

  产品描述
   
  Structure:

--Cutting Structure:Offset crested scoop compacts of larger size were arraged in inner row, wedge compacts in heel row with high tooth exposure and uneven intervals inbetween.

-- Gage Protection:Multiple gage protectionwith gage trimmers on the heel row and dedicated TCI inserts of high strength and high toughness in combination with optimized compact arrangements and exposure height will highly incress the wear resistance and cutting ability of the insert bits.

-- Bearing and Seal system:Sealed roller/journal bearing structurewith rollers arraged in grooves recessed in cone body and bigger bearing journal can be better adopted with high WOB and hing RPM

Premium HNBR O-ring with optical seal compression and curved seal structure as well as advanced special grease can limit presure differential and prevent drilling fluid from entering the lubrication system and thus strongly assure the lubrication of the bearing.

Applicable Formation:

Very soft formation with low compressive strength and high drillability such as:shale,clay,sandstone,soft limestone,salt rock, gypsum

   


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