The new shaft features a 20% reduction both in size and weight, and it is suitable for more demanding operating environments. The new shaft is capable of operating at a minimum lubrication of 50 cc/min, in comparison with conventional minimum of 100 cc/min. Furthermore, the new shaft is capable of operating at a maximum temperature of up to 150 degrees Celsius, slightly higher than the conventional maximum of 120 degrees Celsius. Finally, the adoption of the cage and roller design has increased the maximum RPM capability to 3 folds that of a full-complement roller bearing from 12,000 rpm to 38,000 rpm. NSK is targeting sales of 2 billion JPY by 2015.
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