NSK Linear Roller Guides With Enhanced Seals Offer High Performance Even In Challenging Environments
NSK used the recent EMO 2019 exhibition to introduce its optimised RA series of recirculating roller bearing guides with enhanced sealing technology. RA linear roller guides are equipped with new V1 seals and an improved cover, thus helping to increase the service life and reliability of machine tools.
In the machine tool industry, roller guides often work in contaminated environments. Depending on the application, guides can be exposed to aluminium chips, metal particles and graphite dust. If these contaminants enter the interior of the slider, service life will be impaired.
Separate protective systems such as bellows cannot reliably eliminate this risk. Instead, the guides themselves must be equipped with a highly effective seal, which is why NSK has optimised the roller guides of its RA series.
The sliders can now be equipped with high-performance V1 seals that reliably protect against contamination entering the recirculating roller area.
Featuring a special profile and material with high abrasion resistance, the seals simultaneously provide highly effective sealing and, at the same time, low friction. In turn, the repeatable and accurate guidance of spindles, portals or slides in machine tools, is assured.
V1 seals are located at each end of the guide carriage. NSK also introduced a further seal on the underside of the guide carriage during the course of its optimisation work.
This second seal prevents dirt from getting into the slider when passing through particle accumulations in the machine, for example. Since machine axes are often mounted upside down or at an angle, the improved lower seal makes a significant contribution to preventing contamination from entering the slider.
As an option, RA linear roller bearing and guideway assemblies can be ordered with sealing caps or a cover strip for the mounting holes – a sensible choice for contaminated environment applications. A further option is the integration of the compact K1 lubrication unit into the carriage, thus ensuring permanent lubrication of the raceway.
NSK Europe Ltd
- 01636 605 123
- info-uk@nsk.com
- Belmont Place, Belmont Road, Maidenhead, Berkshire, SL6 6TB GB
About us
Established over 100 years ago, NSK (Nippon Seiko Kabushiki Kaisha) is a Japanese-listed company that has evolved from a regional ball bearing supplier to a roller bearing specialist and automotive supplier with a global market presence. Today, NSK employs more than 31,400 employees in 30 countries. As per March 2019, NSK achieved sales of 991,4 billion Yen. This result has been driven by ever-increasing investment in research & development, enabling the company to continuously improve the quality of its products and services. This investment supports NSK’s objective of “No. 1 in Total Quality”. In addition to a complete rolling bearing portfolio, NSK develops and manufactures precision components and mechatronic products, as well as systems and components for the automotive industry, including wheel bearing units and electric power-steering systems. In 1963, NSK’s first European subsidiary, Düsseldorf, Germany, was opened and in 1976, the first European production facility in Peterlee, England. Today, NSK Europe supports pan-European sales with production locations in England, Poland and Germany, logistics centres in the Netherlands, Germany and England and technology centres in Germany, England and Poland. In 1990, NSK purchased the UPI Group including the renowned European bearing manufacturer RHP, with its factory in Newark (UK). Additionally, NSK has developed a comprehensive network of authorised sales distributors. NSK Europe is divided into application-based business divisions: Industry rolling bearing technologies & linear and precision technology (EIBU) as well as bearing modules and steering systems for the automotive industry (EABU & ESBU). In this organisation, NSK Europe's 4,260 employees achieved a turnover of over 1,045 million Euros as per March 2019.
Where we supply to
Europe, Africa, Asia, Australia, South America, North America
Industries we supply to
Automation, Chemicals, Consultants, Components Electronics, Energy and Power, Food and Beverage, Glass Ceramics Cement, Metals and Minerals, OEM, Paper and Pulp, Pharmaceutical Cosmetics Toiletries, Plastics and Rubber, Recycling, Textiles, Tobacco, Water and Wastewater
