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JS2C roller core bits
JS2C roller core bits
JS2C roller core bits
JS2C roller core bits
JS2C roller core bits
JS2C roller core bits

JS2C roller core bits

1,Palm body and wheel material: 15GrNi4Mn (15 chrome nickel 4 manganese) 2,The tooth profile of the cone is: steel teeth (milled teeth), insert teeth Steel teeth are mainly used in fully weathered mudstone strata and sand egg formations. The steel teeth are high and fast. The teeth (inlaid with carbide teeth) tooth profile (IADC) mainly has 517, 537, 617, 637 teeth

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Single roller bit

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  • Description

  • 1,Palm body and wheel material: 15GrNi4Mn (15 chrome nickel 4 manganese)
    2,The tooth profile of the cone is: steel teeth (milled teeth), insert teeth
    Steel teeth are mainly used in fully weathered mudstone strata and sand egg formations. The steel teeth are high and fast.
    The teeth (inlaid with carbide teeth) tooth profile (IADC) mainly has 517, 537, 617, 637 teeth

    Specification ：

    1 Rubber & metal sealed bearing  
    2 tooth shape (IADC) mainly has 517, 537, 617, 637 teeth.
    3 Roller cores mainly szie :  6 ½ ”, 8 ½”, 9 ½ ”, 12 ¼” inch cores
    4 Matching principle:
       A)Sand layer, weathered mudstone: steel teeth (milled tooth gear)
       B)Soft rock formation: generally refers to the formation below 30MPa, using 517 teeth
       C) Medium hard formation: 40-80MPa hardness rock, using 537, 617 teeth
       D)Hard rock formation : >80Mpa hardness rock , using 617 teeth ,metal sealed cores .

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