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Product video

API 7K Roller Kelly Bushings for Oil Drilling Equipment

Available for enquiry 0.0 · 0 reviews
USD

$ 990.00 990.0 USD $ 990.00

Not Available For Sale

Minimum order quantity: 10 Units

Key attributes

View all
Core components
square kelly bushing
Machinery test report
Provided
Warranty
6 Months
Video outgoing-inspection
Provided
Color
red
Production Capacity
50 Set/Sets per Month
Product description

Highlights at a glance

  • All roller kelly bushings are processed by high-precision numerical control equipment, with strict dimensional control standards and extremely small dimensional tolerance errors. The inner diameter size, outer diameter size, roller installation position and matching gap of the product are precisely calibrated one by one to ensure that the product can achieve a perfect fit with the standard kelly bar.
  • The precise matching gap can effectively avoid the shaking and deviation of the kelly bar during rotation, ensure the verticality and stability of drilling operation, improve the drilling accuracy, and avoid drilling deviation caused by equipment matching problems.
  • The high-precision machining process also ensures the flexible rotation of the internal roller group without jamming and stagnation, ensuring the continuity of drilling operation.The product adopts integral forging forming process, with uniform internal material structure and no weak structural links.
  • The overall shell has high structural rigidity and toughness, which can resist accidental impact and vibration generated during drilling operation.
  • In complex downhole working conditions such as uneven stratum and sudden change of drilling resistance, the roller kelly bushing can still maintain stable structural state, no deformation, no loose parts, effectively buffer the impact force generated by drilling vibration, protect the kelly bar and rotary table structure from impact damage, and improve the overall anti-risk ability of drilling equipment operation.
  • On-site operators can quickly complete disassembly, inspection, cleaning and replacement work without professional technical guidance and special tools. The daily maintenance work only needs simple surface cleaning and regular inspection of roller flexibility, without complex maintenance procedures and high maintenance costs.
  • The long service life and low maintenance cost of the product greatly reduce the overall operating cost of drilling equipment.
    • Frequently asked questions

    Roller Kelly Bushing is a key matching component for drilling rig kelly bar operation. Its core function is to support and limit the kelly bar, convert the sliding friction between the kelly bar and the fixed base into rolling friction through the built-in roller structure. It can effectively bear the radial load generated during drilling rotation, avoid direct wear of the kelly bar, ensure the stable rotation of the drilling tool, and maintain the smooth progress of drilling operations.

    This series of roller kelly bushings is widely applicable to conventional oil and gas well drilling, geological exploration drilling, shallow and medium-depth well drilling and other working scenarios. It can adapt to various complex ground and downhole working conditions, and is suitable for matching with multiple models of rotary tables and kelly bar assemblies, meeting the daily operation needs of various conventional drilling rigs.

    In daily use, when the roller kelly bushing has obvious roller jamming and inflexible rotation, continuous abnormal friction noise during kelly bar operation, obvious wear and scratch on the bushing contact surface and roller surface, or increased gap between the bushing and kelly bar leading to operation deviation, it needs to be replaced in time to avoid affecting drilling stability and causing secondary wear of equipment.
    Description images
    Product detail
    Product detail
    Product detail
    Product detail
    Packaging and fulfilment
    • Step 1

      Payment and order readiness

      Minimum order: 10 Units

      Payment terms, specifications, and order details are confirmed before preparation begins.

    • Step 2

      Preparation

      15 days

    • Step 3

      Packaging and dispatch

      Packaging details are available on request.

      Final packing, freight, and delivery dates are confirmed before dispatch.

    Technical specifications
    Other details 12 fields
    Core components
    square kelly bushing
    Machinery test report
    Provided
    Warranty
    6 Months
    Video outgoing-inspection
    Provided
    Color
    red
    Production Capacity
    50 Set/Sets per Month
    Place of origin
    China, Shandong
    Weight (kg)
    400
    Application
    Well drilling
    Features
    High Performance
    Selling Units
    Single item
    Model number
    All size
    Lead time
    15 days
    Minimum order
    10 Units

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