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Off-Highway Quarry Vehicles

NSK Bearings Help You Improve Service Life from Off-Highway Quarry Vehicles

NSK’s off-highway bearing range is designed to provide improved service life in the arduous conditions of dust, mud, high- loads and extremes of temperature that are encountered daily by mobile quarrying vehicles.

Equipped with greater number of larger rollers for superior high-load ratings and longer life, NSK’s HR series of tapered roller bearings are capable of handling combined heavy radial and axial loads, when used in pairs. They are designed for use on the wheels, differential and final drives of off-highway trucks; the transmission and speed reducers on crawler-dozers; the transmission and front axles of wheel loaders and rotational motors on hydraulic excavators.

Also providing improved performance benefits as a result of integrating additional rollers in their design is NSK’s EW / EM series of cylindrical roller bearings. Designed to optimise the differentials of off-road trucks, the transmissions and torque converters of crawler dozers and the transmissions of wheel loaders, the EW / EM series CRB are capable of carrying particularly large radial loads, and are also suitable for high-speed applications.  Available with steel and brass cages, they offer high-load ratings for standard size bearings, in addition to excellent and longer operating life - approximately twice that of conventional CRB.

Designed to complement the EW / EM series of CRB in the transmissions of crawler dozers are NSK’s latest specification spherical roller bearings: the NSKHPS series. The HPS™ range of bearings offers new levels of performance with up to twice the operating life compared to conventional bearings of the same size, and a maximum limiting speed that has been improved by up to 20%. It provides users with significant benefits by reducing maintenance costs, energy costs, and enabling downscaling of product designs.

For advice on NSK solutions for off-highway vehicles, and all other NSK solutions for quarrying, please contact us. Our bearing substitution programme, backed up by training, and underpinned by with a wealth of technical expertise, delivers optimum bearing solutions for our customers, ensuring that they get the most from their plant and machinery.

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