Mechanical extractors can be used to dismantle small and medium sized rolling bearings that are
located with a tight fit on a shaft or in a housing. The bearing can be dismantled without damage if the
extractor is in contact with the tightly fitted bearing ring. In the case of mechanical extractors, the
extraction force is normally applied by means of threaded spindles. In addition to the two arm and
three-arm devices as well as a hydraulic pressure tool, special solutions are also possible. For
dismounting of larger bearings, hydraulic extractors should be used.