NSK Industries - Spindle of Grinding Machine: Within NSK's own precision plant, a grinding machine was experiencing raceway form errors. After numerous attempts to correct the form error, the fault remains unidentified.
NSK Industries - Conveyor: One potash processing plant had problems with chain conveyor's plummer blocks equipped with tapered roller bearings. The bearings failed several times per year due to tough operation conditions (production dust, high shaft temperature).
