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NSK has helped a customer on the food processing industry achieve significant annual cost savings on a battered fish processing line by replacing bearing inserts with Molded Oil bearings.

The bearing problem on the fish processing line centred on a conveyor, which is used in the process of adding batter to fish products.

The harsh nature of the process meant that the 25mm diameter bearings on the conveyor were lasting only four weeks on the line, due to the ingress of contaminates and frequent washdowns.

Engineers from NSK’s AIP cost-reduction programme were called in to give advice.

The AIP cost-reduction programme is a value-added service that helps bearing users to reduce operating costs and improve efficiency, reliability and profitability.

These objectives are achieved by delivering tangible savings to assets, such as equipment and machinery, and also by improving the working knowledge of maintenance and engineering personnel.

NSK engineers visited the process and identified the problem.

They suggested a solution using NSK’s Molded Oil bearings, which they said would prolong bearing life.

Molded Oil bearings employ a special solid lubricant to transform the performance of machinery in environments exposed to high humidity, corrosion and contamination.

The bearings are said to achieve improvements in performance and reliability by offering more than twice the operating life of grease lubrication in water-contaminated environments.

The solid-lubricant technology also means that operating environments are kept free of grease, and there is no need for refilling of lubricant, as Molded Oil provides a continuous supply of lubricating oil.

Sample Molded Oil bearing inserts were fitted to the conveyor and trialled over an extended period of six months.

Impressed with the extended bearing life, the customer began replacement of the existing conveyor bearings with Molded Oil units.

In addition to providing improved life, these bearings are also saving the customer the considerable cost of re-greasing of bearings.


NSK, a global leader in motion and control products, has developed and continuously upgrades four core technologies: tribology, material engineering, analysis technology and mechatronics, to provide the platform for the company’s innovative product developments. This technology platform provides the basis for the design of NSK’s rolling bearings, automotive components and precision parts. In addition, by integrating these advanced technologies, NSK is able to respond quickly and effectively to customer requirements across all key sectors.

NSK is a driver of new technology developments, with a full line-up of products spanning general industrial, automotive and precision parts industries. These include bearings for mechanical and electrical machinery, IT and aftermarket; innovative automotive products such as electric power steering (EPS) automatic transmission components, steering columns and other steering related products; and precision linear motion components such as linear guides, ballscrews, X-Y tables, mechatronic products and Megatorque motors.

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