Ball or roller screws
N074168 · 2009-09-17 — The tariff classification of a ball screw and nut from Japan
Descriptive information and an illustration were submitted. The item you plan to import is a ball screw and nut, item number 76-0172. This chrome plated, steel ball screw and nut will be used as a replacement part in routing machines. The ball screw measures 760 mm in length and has a 35 mm diameter. It is designed to move the head of the router in a vertical direction. The nut secures the ball screw in place. The applicable subheading for the ball screw and nut will be 8483.40.8000, Harmonized Tariff Schedule of the United States (HTSUS), which provides for balls or roller screws. The rate…
I85507 · 2002-09-03 — The tariff classification of pedestal actuators from an unnamed country of origin.
The merchandise is pedestal actuators, with or without motors. The actuators are electromechanical linear actuators used for lifting, lowering, pushing or pulling. They are powered by fractional horsepower DC or AC motors that drive a ball bearing screw or acme screw through a gear reducer to convert rotary to linear motion. They have telescoping members, which rigidly support the load and provide anti-rotation, and are designed for flat or base mounting. The principal use of these items is as parts of mobility scooters, in which they serve as elevating and lowering seat supports. The…
a85005 · 1996-07-25 — The tariff classification of ball screws and linear modules from Germany
The items at hand in this request consist of a series of ball screw assemblies and a series of linear modules. The ball screws are available in a range of precision levels and lengths. The linear modules, which are assemblies designed to convert the rotary torque of an electric motor to linear actuation, come in three configurations; series MKK, a combination of ball rail guide (linear ball bearing) and ball screw; series MKR, a combination of ball rail guide and toothed belt drive; and series MLR, a combination of cam roller guide and toothed belt drive. Both groups are produced by Deutsche…
a81599 · 1996-04-23 — The tariff classification of roller screws from Switzerland
The items at issue are various styles of roller screws: non-recirculating, ground screw thread; non-recirculating, rolled screw thread; and recirculating, round screw thread. A roller screw is a mechanism for converting rotary torque into linear motion, in a similar manner as acme screws or ball screws. The difference is in the rollers screw's design for transmitting forces. Multiple threaded helical rollers are assembled in a planetary arrangement around a threaded shaft (refer to picture), which converts a drive motor's rotary motion into linear motion of either the shaft or nut. The…
816587 · 1995-12-08 — The tariff classification of ball screws from Germany and linear ball bearings and parts of linear ball bearings from Switzerland
, you requested a tariff classification ruling. The items at issue are a series of ball screws manufactured in Germany, as well as a line of recirculating linear ball bearings, and parts of such linear bearings, manufactured in Switzerland. Ball screws are power transmission devices that convert rotary motion into linear motion and incorporate recirculating steel balls to reduce friction between the nut and screw. Linear ball bushings (bearings) are used to reduce translational friction. They consist of a housing (outer race) containing rows of recirculating steel balls, and a steel shaft…
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