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NSK has produced a pocket-sized guide that covers all aspects of rolling bearing maintenance.

The pocket guide is designed to help bearing users overcome the damaging effects of incorrect specification, mounting and improper handling, which are said to be the most common causes of premature bearing failure.

It also offers the user comprehensive data, listing common causes for bearing failures and the countermeasures that can be employed to eliminate them.

The pocket guide is split into sections, which are accompanied by charts and graphs that provide at-a-glance information on topics such as: basic bearing types; the ordering of replacement bearings; care and maintenance; the importance of proper fits; tolerances for housing bore diameters; mounting; and bearing lubrication.

The guide also features a ‘Bearing Doctor’ section that provides images and explanations of a wide variety of bearing failures.

Each colour image is accompanied by a description of the symptom of the failure, its possible cause and countermeasures to overcome it.

The free guide contains more than 80 pages and is spiral bound to enable easy reading of individual sections by engineers in the workshop or in the field.

Free copies of the ‘Maintenance of Bearings’ pocket guide are available direct from NSK.

Customers should quote the publication reference PG/A/E/03.10 and the title of the publication.


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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