Bearings For Rolling Mills With Newly Developed Water-Resistant Grease Offer Long Service Life
NSK has developed its latest four-row tapered roller bearings for rolling mills to offer a number of class-leading performance and environmental benefits. The work roll bearings use newly developed, water-resistant grease that is fully sealed into the confines of the bearing.
With the new bearings, service life is typically doubled in challenging conditions such as those where there is a high risk of water penetration. In addition, the sealed design means that grease consumption is far less than that exhibited by a conventional ´open´ bearing, while the risk of contaminating the environment is greatly reduced.
NSK´s new long-life, four-row, sealed tapered roller bearings with new AQGRD grease deliver on a primary demand of rolling mill applications: the requirement for work roll bearings that last. Rolling mills typically use pairs of work rolls to roll slabs of steel or other metals into specific shapes, such as sheets.
This work is particularly demanding on the bearings, which have to bear heavy loads at high speeds and temperatures, and endure constant exposure to water sprays and metal particles.
These severe operating conditions can lead to premature bearing failure due to flaws such as flaking. Flaking occurs when fatigue causes small pieces of bearing material to separate from the smooth surface of the raceway. This effect creates coarse regions that eventually make the bearing inoperable.
The principal innovation designed to help combat such issues is the newly developed AQGRD water-resistant grease. Optimised grease composition creates a thicker oil film and protective layer between the raceway and rollers, inhibiting direct contact without lubrication, as well as preventing corrosion.
Rust prevention is important as harmful defects such as flaking, which compromise bearing life, stem from areas of corrosion. Ultimately, longer service life reduces maintenance costs and increases operational efficiency. Moreover, since the bearings need less frequent replacement, they help to minimise carbon footprint and resource consumption.
Aside from the long service life benefits, reduced material and energy consumption will also result in relation to the replacement cycles of conventional bearings, which in turn helps to lower CO2 emissions.
Moving forward, NSK will continue developing and manufacturing products geared toward realising a sustainable society.
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
