NSK RNFCL2040A6S Ball Screw

Ball Screw

RFQ

Estimated delivery: 17 Jul 2026 (domestic stock)

In stockEstimated delivery: 17 Jul 2026 (domestic stock)

EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.

Category: Ball Screw

Overview

NSK RNFCL2040A6S Ball Screw converts rotary motion into precise linear motion through balls recirculating between a threaded shaft and nut. Its low friction and high efficiency deliver accurate positioning and long life, making it a standard drive element in machine tools, actuators, and automation axes.

A ground or rolled screw shaft engages a ball nut through hardened raceways, with balls recirculating via return tubes or deflectors. Lead accuracy grade, preload, and nut style (single-nut, double-nut, flanged) are selected for the required positioning accuracy and rigidity.

Key features

High efficiency and low-friction drive
Accurate, repeatable linear positioning
Preloaded nuts minimize axial backlash
Rolled and precision-ground accuracy grades

Typical applications

CNC machine tool feed axes
Electric actuators and presses
Automation and robotic axes
Injection molding and semiconductor equipment

Selection guidance

Verify shaft diameter and lead, thread direction, nut style, lead accuracy grade, preload, and end machining/support method.

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