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Professional Tricone Rock Bit 12 1/4" FA637G Rock Drilling Tools Blue Color

Categories Tricone Rock Bit
Brand Name: FLRT
Model Number: 12 1/4" FA637G
Certification: API-7-1, ISO 9001:2008
Place of Origin: China
MOQ: 20pcs
Supply Ability: 300pcs per quarter
Delivery Time: 5~45 workdays
Packaging Details: plywood box / iron box
Bearing Type: carbide rock drill bits
Cutting Material: TCI
Standard: API-7-1, ISO 9001:2008
Series: FA
IADC: 637
Supplementary Features: G : Reinforced Gauge Protection
TCI: Tungsten Carbide Insert
Formation: Medium hard with higher compressive strength as well as thick and streaks
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    Professional Tricone Rock Bit 12 1/4" FA637G Rock Drilling Tools Blue Color

    12 1/4" FA637G , Tricone Bit , Well Drilling Bit , Fluid Circulation , TCI Rock Bit , TRC Bit


    RECOMMENDED DRILLING PARAMETERS FOR APPLICATION


    Types & IADC Code417

    437

    447

    517

    527

    517

    527

    537

    547

    617

    627

    637


    WOBKN/mm(Bit Dia.)0.4~0.90.4~0.90.35~1.00.35~1.00.5~1.00.6~1.10.7~1.2
    Lb/in. (Bit Dia.)2285~51422285~51422000~57142000~57142857~57143428~62854000~6857
    Rotation Speed (Rpm)140~60240~70125~50~60110~50100~4080~4

    ROLLER CONE BIT BEARING ASSEMBLY

    All bearing materials must be made of toughened steel which has a high resistance to chipping and breaking under the severe loading they must support.


    As with all rock bit components, heat treatment is used to strengthen the steel.


    The most important factor in the design of the bearing assembly is the space availability.


    Ideally the bearings should be large enough to support the applied loading, but this must be balanced against the strength of the journal and cone shell which will be a function of the journal diameter and cone shell thickness.


    The final design is a compromise which ensures that, ideally, the bearings will not wear out before the cutting structure (i.e. all bit components should wear out evenly).


    However, the cyclic loading imposed on the bearings will, in all cases, eventually initiate a failure.


    When this occurs the balance and alignment of the assembly is destroyed and the cones lock onto the journals.

    Quality Professional Tricone Rock Bit 12 1/4" FA637G Rock Drilling Tools Blue Color for sale
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