SHX is a heat and wear resistant steel resulting from NSK’s special proprietary materials and heat treatment technology. SHX offers ultra high-speed performance and extended fatigue life. Ideally suited for machine tools running at maximum capacity.

NSK has combined its exclusive SHX bearing steel, and ceramic rolling elements to produce ultra high-speed Heat resistant SHX steel Precision Bearings hybrid angular contact bearings that can operate reliably at speeds up to 3.3 x 106 dmn (47,100rpm for a 70mm bore bearing). The synergy achieved between the materials in the bearings also enables theROBUST hybrid series to offer the user the benefits of lower heat generation, high seizure resistance, better temperature stability, and greater stability during high-speed operation.

The superior performance characteristics of the ROBUST series of hybrid bearings mean that they are ideally suited to high-speed machining operations where conventional angular contact bearings would be beyond their operating limits. The bearings satisfy the NSK 6200z Bearing exacting demands of the latest generations of motorised machine tool spindles for smooth running - even during periods of rapid acceleration, where their higher levels of temperature tolerance, low heat generation and resistance to seizure help to improve bearing life.