HS Code for Ball screw
Ball screws are classified under HS code 8483.40 because they are mechanical transmission elements designed to convert rotary motion into linear motion. This specific subheading covers gears and gearing, but explicitly mentions ball or roller screws as a distinct category within the broader group of transmission shafts and cranks. The classification is determined by the primary function of the component as a power transmission device. Unlike standard screws used for fastening, ball screws utilize recirculating balls to minimize friction and provide high precision in machinery. Because they are essential components in the drive systems of machine tools and precision instruments, they fall under Chapter 84, which deals with nuclear reactors, boilers, machinery, and mechanical appliances. The inclusion of ball screws in 8483.40 is based on their role in mechanical power transmission, distinguishing them from simple fasteners or non-transmission hardware.
Products Included
- Precision ball screws for CNC machinery
- Recirculating ball screw assemblies
- Roller screws for heavy-duty linear actuators
- Ground ball screws for aerospace applications
- Rolled ball screws for industrial automation
- Ball screw nuts and shafts presented as a set
Common Misclassification
Ball screws are frequently misclassified under HS code 8482, which covers ball or roller bearings. While ball screws contain internal balls, their primary function is motion transmission rather than just supporting a load. Another common error is using HS code 8412, which covers linear actuators. While a ball screw is a component of an actuator, the screw itself remains under 8483.40 unless it is part of a fully integrated hydraulic or pneumatic system. Additionally, they should not be confused with standard threaded rods or fasteners in Chapter 73, as those lack the specialized recirculating ball mechanism.
FAQ
What is the HS code for Ball screw?
The primary HS code for ball screws is 8483.40, which specifically includes ball or roller screws within the category of gears and gearing.
Are ball screw parts classified differently?
Generally, parts of ball screws such as the nut or the screw shaft are classified under 8483.90 as parts of transmission elements, unless they are imported as a complete assembly.
Industry
Frequently Asked Questions
What is the HS code for Ball screw?
The HS code for Ball screw is 848340 (Gears and gearing; (not toothed wheels, chain sprockets and other transmission elements presented separately); ball or roller screws; gear boxes and other speed changers, including torque converters).
How do I classify Ball screw for customs?
Ball screw is classified under HS code 848340 — Gears and gearing; (not toothed wheels, chain sprockets and other transmission elements presented separately); ball or roller screws; gear boxes and other speed changers, including torque converters. This is a 6-digit subheading level code.
Is the HS code for Ball screw the same in all countries?
The base HS code 848340 for Ball screw is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.