Precision Ball Screw for CNC Machines
A high-precision ball screw assembly consisting of a threaded shaft and recirculating ball nut, designed for linear motion in CNC machining centers. It converts rotary motion to linear motion with minimal friction, classified under HTS 8483.40.80.00 as a ball screw used in industrial transmission systems.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used primarily as a bearing component without linear motion intent
Plain shaft bearings or similar articles fall under 8482 if not functioning as roller screws for transmission.
If imported as integral part of a complete CNC machine
Parts of machines not specified elsewhere are classified with the machine under Chapter 84 headings.
If precision-ground with measurement scales for positioning systems
Measuring or checking instruments incorporating linear scales go to Chapter 90.
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Import Tips & Compliance
• Verify ISO 9001 certification and dimensional tolerances to ensure classification as precision ball screws
• Include detailed engineering specs in commercial invoice to avoid misclassification as plain bearings
• Check for anti-backlash features; report exact lead pitch to comply with statistical reporting
Related Products under HTS 8483.40.80.00
Roller Screw Actuator for Semiconductor Wafer Handlers
Heavy-duty roller screw mechanism providing high load capacity for precise positioning in semiconductor wafer transfer robots. Features planetary roller design for durability in cleanroom environments, squarely under HTS 8483.40.80.00 for roller screws in transmission applications.
Miniature Ball Screw for Medical Robotics
Compact ball screw with 3-6mm diameter for surgical robots and precision medical devices requiring backlash-free motion. Medical-grade materials and lubrication ensure sterility, classified as roller screw under HTS 8483.40.80.00.
High-Lead Ball Screw for Injection Molding Machines
Large-diameter ball screw (50-80mm) with fast lead for rapid clamp movement in plastic injection molding presses. High thrust capacity handles molding pressures up to 2000 tons, under HTS 8483.40.80.00 as industrial roller screw.
Planetary Roller Screw for Aerospace Actuators
Planetary roller screw with threaded rollers between screw and nut for extreme load applications in aircraft landing gear and flight control surfaces. Aerospace-qualified per AS9100, classified HTS 8483.40.80.00.
Zero-Backlash Ball Screw for 3D Printers
Preloaded dual-nut ball screw eliminating backlash for high-resolution Z-axis motion in industrial 3D printers. 16mm diameter precision-ground shaft, under HTS 8483.40.80.00 for roller screws.
Dia-Pitch Ball Screw for Semiconductor Crystal Pullers
Dia-pitch ball screw providing ultra-smooth constant velocity motion for Czochralski crystal pullers growing silicon boules. Vibration-damped design per statistical notes, HTS 8483.40.80.00 classification.