Kelly Drive Bushing for Rotary Gas Drilling
The kelly drive bushing connects the kelly to the rotary table, transmitting rotary motion to the drill string in gas field operations. Classified under HTS 8430.49.8010 for its role in rotary boring machinery dedicated to oil and gas well drilling.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If treated as unmounted parts/accessories
Bushings not forming a complete rotary unit may classify under parts of other boring or sinking machinery.
If for non-oil/gas boring like water wells
Rotary components for other earth boring exclude oil/gas, shifting to different 'Other' boring subheading.
If primarily a transmission component
Flywheels and pulleys for rotary motion can fall under transmission machinery if not drilling-specific.
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Import Tips & Compliance
• Provide engineering diagrams illustrating rotary torque transmission to confirm oil/gas drilling specificity
• Ensure labeling matches API Spec 7K standards for drilling equipment to facilitate verification
Related Products under HTS 8430.49.80.10
Rotary Swivel for Oil Rig Drill String
A rotary swivel connects the top drive or kelly to the drilling hose, allowing rotation while permitting mud flow in oil well rotary drilling. It is included in HTS 8430.49.8010 as essential rotary machinery for oil and gas field boring operations.
Independent Rotary Table for Offshore Rigs
Independent rotary tables operate without kelly dependency on offshore oil platforms, offering backup rotation for drilling strings. Fits HTS 8430.49.8010 as rotary machinery for oil and gas field boring.
Variable Frequency Drive Rotary for Oil Rigs
VFD rotary systems control motor speed for precise rotation in oil rig drilling, optimizing torque for hard rock formations. HTS 8430.49.8010 covers this rotary boring tech for oil/gas fields.
Rotary Table for Oil Well Drilling Rig
A rotary table is a mechanical device mounted on the drill floor of an oil rig that provides torque to the drill string through the kelly or top drive. It falls under HTS 8430.49.8010 as rotary boring machinery specifically for oil well and gas field drilling, enabling the rotational force necessary for penetrating earth layers to extract hydrocarbons.
Master Bushing Adapter for Rotary Drilling
Master bushing adapters fit into rotary tables to grip kellys or pipes during oil well rotary boring, ensuring secure torque transfer. Falls under HTS 8430.49.8010 for rotary-specific oil and gas field drilling machinery.
Top Drive Rotary System for Gas Wells
A top drive rotary system replaces the kelly-rotary table setup, directly rotating the drill string from the derrick top in gas well drilling. Classified in HTS 8430.49.8010 as advanced rotary boring machinery for oil and gas fields.