Produktionstechnik

NSK triple lip seal provides ultimate bearing protection

Bearings that operate in conditions with a high degree of contamination must offer many attributes. A highly efficient sealing arrangement is priority number one. However, these bearings must also be cost-effective and provide easy, quick and convenient fitting and removal, including the capability to counter any misalignment during assembly. To help meet all of these demands, an increasing number of OEMs and manufacturing plants are finding the optimum solution in NSK’s Self-Lube® bearing units with triple lip seal.

Self-Lube® bearing units help users to combat extreme condition challenges through a broad portfolio of reliable inserts and housings. Notably, these cost-effective units provide a simple and fast solution for mounting bearings without the need for complex housings or special shaft arrangements. Self-Lube® units provide all the features necessary to easily attach a bearing to a frame and a shaft.

Premier among the advantages is the specially developed triple lip seal, a one-piece moulded nitrile seal with three sealing lips. Bonded to a protective outer steel pressing (secured in the outer ring), the triple lip seal makes for a highly efficient sealing design that protects the bearing in severe conditions involving dust, sand, water or slurry.

Among a growing number turning to Self-Lube® bearing units with triple lip seal is a manufacturer of barrel washers for cleaning vegetables prior to processing or packaging. The barrel washer’s bearings submerge in water with every rotation of the drum. Due to water washout and corrosion it was proving necessary to replace the bearings every three months. To avoid this costly exercise, the company invited NSK’s expert team of engineers to investigate the problem.

After a full application review and bearing failure analysis, NSK recommended its Self-Lube® bearing units with triple lip seal, which are perfect for applications where bearings face exposure to water contamination. The solution produced a significant lifetime extension to more than 7 months (at least 133% improvement). As a result, the manufacturer of barrel washers is saving €56,600 in bearing replacement and maintenance costs over every six-month period of operations.

Self-Lube® bearing units comprise an insert and a housing. The inserts are deep-groove ball bearings made to the popular 6200 series configuration, with integral design features that make them more functional and versatile than standard ball bearings. Self-Lube® inserts not only suit the wide range of RHP housings available from NSK, but applications where the user’s own housing is preferred.

NSK offers a large size range along with various shaft locking arrangements – including set screw, eccentric collar and taper sleeve locking options. Moreover, extended re-lubrication intervals greatly reduce maintenance costs and increase the productivity of machines.

Über die 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 nearly 30,400 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. In fiscal year 2020, the more than 4,350 employees of NSK Europe Ltd. generated sales of over € 792 million.
www.nskeurope.com

Firmenkontakt und Herausgeber der Meldung:

NSK Deutschland GmbH
Harkortstrasse 15
40880 Ratingen
Telefon: +49 (2102) 4810
http://www.nskeurope.de

Ansprechpartner:
Marie-Dominique Pilath
Telefon: +49 (2102) 4811280
E-Mail: pilath-m@nsk.com
Kumiko Matsuo
Telefon: +34 (600) 780-385
E-Mail: k.matsuo@mepax.com
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