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NSK has worked with the global manufacturers of mining machinery to develop a package of tough, high-performance bearings that offer longer service life in gearboxes and drive systems under demanding mining conditions. NSK’s bearing range is designed to cope with the dust, mud, high- loads and extremes of temperature that are encountered daily in mining and extraction. It exceeds the limits of conventional bearings, both in terms of longer operating life and limiting speed, helping to deliver the high levels of reliability required in mining projects all over the world.
One of the key factors in the enhanced performance of NSK’s bearing range is the development of special materials technology: in particular, Hi -TF material. Bearings manufactured from Hi -TF are designed to provide outstanding toughness under harsh operating conditions. The combination of Hi -TF material and the special heat treatment technology provides a range of bearings that give longer service life under contaminated lubrication conditions than conventional bearings, together with the added benefits of superior resistance to wear, seizure and heat.
Developed specifically for applications with heavy or shock loads, of the type encountered in crushers, NSK’s CA series of double row spherical roller bearings are manufactured with a machined brass cage to combat the effects of vibration, operating fatigue, wear and corrosion. The CA bearings have high load capacity, superior durability and are resistant to wear. Extending the CA range, further, into harsh vibrating applications is NSK’s CA-VS series of spherical roller bearings.