The phenomenon of smearing (micro-seizing) caused by slippage between the raceway surface of the inner and outer rings and the roller surface may occur in bearings used in light-load areas inside papermaking machinery and areas with poor lubrication conditions. If not addressed, smearing can lead to flaking and fracture that result in production line stoppage.
NSK has now developed papermaking machinery bearings that prevent micro-seizing. With the improved smearing resistance achieved by coating the bearings’ rolling elements with NSK’s proprietary diamond-like carbon, the newly developed product is expected to contribute to more stable operation of papermaking machinery and extend maintenance intervals.