Corrosion-Resistant Ball Screw for Marine Winches
Duplex stainless steel ball screw with bronze nut for anchor winches and davit systems on offshore vessels. Saltwater corrosion resistance per ASTM standards, HTS 8483.40.80.00.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If qualified vessel part with marine classification certificate
Vessels and floating structures parts classified in Chapter 89.
If part of offshore crane or handling equipment
Other machinery for lifting/handling includes marine deck equipment.
If imported with integrated crank handle
Transmission shafts and cranks incorporating roller screws in 8483.10.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Include material test reports (UNS S31803 duplex SS) and salt spray test results
• Document IP67 sealing and marine classification society approvals (ABS/DNV)
• Specify self-locking lead angle for safety-critical marine applications
Related Products under HTS 8483.40.80.00
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.
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.