Machine-Tool Bearing provides high corrosion resistance.

Press Release Summary:

X-Life Ultra utilizes rings made from Cronidur 30 low-nitrogen steel, ceramic (silicon nitride) balls with phenolic cage, thermally stable grease, and integral seal options. Bearing provides 10x longer life when compared to conventional 52100 and 440 hybrid ceramic bearings. Standard bore diameters range from 20 to 120 mm.

Original Press Release:

X-Life Ultra Bearings Provide Long Life, Corrosion Resistance

Bearing Life Extended Up To 10x Over Conventional Hybrid Ceramic Bearings

Danbury, CT (September 4, 2002). . . X-Life Ultra, a new machine tool bearing from Barden offers remarkable performance characteristics, improved corrosion resistance and up to 10x longer life when compared to conventional 52100 and 440 hybrid ceramic bearings. The new X-Life Ultra Bearing design combines rings made from Cronidur 30 - a special low nitrogen steel originally developed by Barden for use in critical aerospace applications - and ceramic (silicon nitride) balls with a phenolic cage, a high-speed, thermally stable grease and integral seal options.

X-life Ultra bearings are specifically designed to meet the speed, load and reliability requirements of today's high speed machining centers. Available both in standard and application-specific (i.e. custom) sizes, X-life Ultra Bearings can provide substantial savings to both machine tool manufacturers and end users.

X-life Ultra Bearings are thought to be the most advanced bearing design on the market in terms of loadability and speedability. They are available for use in precision machine tool applications in bore diameters from 20 mm to 120 mm.

Contact The Barden Corporation, 200 Park Ave., Danbury, CT 06813-2449, at (203) 744-2211 or visit or

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