Monitoring and diagnosis of the condition of bearings, ball screws, and linear guides is critical for predictive maintenance of machines and equipment. NSK’s ACOUS NAVI is your solution.

Continuous Monitoring Software


Patrol Monitoring Devices
Introduction Movie

Condition Monitoring / Diagnostic Software ACOUS NAVITM

ACOUS NAVI monitors the operating status of machine elements by diagnosing the early signs of damage or deterioration. It is available as a PC application and on dedicated hardware.

Our lineup provides condition monitoring and diagnostics for all of NSK's main products–bearings, ball screws, and linear guides.

ACOUS NAVI products utilize NSK-exclusive technologies to analyze vibrations based on the mechanisms behind damage and deterioration based on years of research and development.

ACOUS NAVI for Bearings
Diagnose Bearing Flaking, Scratches

ACOUS NAVI for Ball Screws
Diagnose Ball Screw Wear, Flaking

ACOUS NAVI for Linear Guides
Diagnose Linear Guide Flaking, Lubrication State


ACOUS NAVI™ Introduction Video


Products Equipped with ACOUS NAVI™

NSK’s condition monitoring/diagnostic software ACOUS NAVI is built-in our portable diagnostic devices. ACOUS NAVI will also be available as open platform software.

Open platform software

Application that offers continuous monitoring when installed on an industrial PC.


A version of the ACOUS NAVI vibration diagnosis application designed for the Internet of Things (IoT) open platform FIELD system developed by FANUC.

Wireless Vibration Diagnostic Device

A compact patrol monitoring device that offers all-in-one high-spec vibration measurements and diagnosis functions.


<Global Release>
Wireless Vibration Diagnostic Device

Sales in Japan and China started from May 2021.


“NSK VIRTUAL EXPO” has been finished its session, but due to its popularity you can continue to view it.

Unless otherwise stated, the product specifications and release information on this website describe our solutions for the Japanese market.
Please wait for further announcements regarding availability of products and services in other countries.
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