KLUBER Klubersynth BH 72-422 High temperature grease for slow running bearings Product description. Are you an OEM or operator using rolling bearings at temperatures above 160 ° C? Do you want an innovative grease to bridge the "operating temperature gap" between traditional, hydrocarbon based and pure PFPE lubricants? According to the patented formula, we now offer Kl ü bersynthBH 72-422, a synthetic high-temperature grease that contains esters and perfluoropolyether (PFPE) oil, as well as PTFE thickener