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Press release Box-ID: 973293

NSK Deutschland GmbH Harkortstrasse 15 40880 Ratingen, Germany http://www.nskeurope.de
Contact Ms Marie-Dominique Pilath +49 2102 4811280
Company logo of NSK Deutschland GmbH
NSK Deutschland GmbH

Precision ball screws from NSK offer higher durability

(PresseBox) (Eschborn, )
Among the innovations being presented by NSK at EMO 2019 is a new series of ball screws which, among other things, achieves a service life that is around three times longer when subjected to high loads. Of enormous benefit to machine tool builders and users, this longevity is made possible by a specially devised surface texture that promotes improved oil film formation.

Like all mechanical components, ball screws are subject to wear. One of the constant development goals of NSK’s research is to continuously reduce friction, and thus increase service life. Before commencing development, NSK noted that typical damage patterns on the surface of ball screws can be traced back to inadequate lubrication, which leads to direct metal-to-metal contact between the shaft and nut. The shafts of precision ball screws are precision ground, and their surface texture appears under a microscope as a strip. Unfortunately, oil can easily run off these micro-strips, soon leading to inadequate lubrication.

On the basis of these findings, NSK set about developing a new surface treatment that produces a flat texture with micro-recesses. Even the smallest oil deposits can settle in these recesses and prevent inadequate lubrication, permanently and effectively. The nut thus moves constantly on an oil film, reducing wear on the ball screw, especially during slow and short strokes.

Compared with standard NSK ball screws, service life is increased by a factor of three. In addition, the new surface texture reduces break-away and stick-slip effects, even during the aforementioned slow and short movements.

The new series is suitable for use in machine tools that perform high-precision machining operations, such as milling centres for mould and die production, spark erosion machines, grinding centres, and other similarly challenging applications.

NSK’s ball screws featuring the new surface texture will be available in pitches from 10 to 50, in accuracies of C5 and better. The company is presenting the ball screw on Booth B34 in Hall 7.

NSK Deutschland GmbH

NSK Europe Ltd. is the European organisation of the Tokyo-based bearing manufacturer NSK, which was founded in Japan in 1916 and today employs around 31,000 people in its worldwide operations. The products and solutions provided by the industrial and automotive supplier can be found wherever things move. In addition to nearly all types of rolling bearings, the company's portfolio includes housed bearings, linear technology, wheel bearing units, transmission and engine bearings and steering systems. The company is oriented to perfection in all of its business activities. Its aim is quality leadership in its industry, which it strives for through a continuous process of improvement, excellent product development, optimised production processes and customer-oriented service processes.
www.nskeurope.com

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The publisher indicated in each case is solely responsible for the press releases above, the event or job offer displayed, and the image and sound material used (see company info when clicking on image/message title or company info right column). As a rule, the publisher is also the author of the press releases and the attached image, sound and information material. The use of information published here is generally free of charge for personal information and editorial processing. Please clarify any copyright issues with the stated publisher before further use. In case of publication, please send a specimen copy to service@pressebox.de.