Just buy a general all purpose grease; That well be just fine;; DON"T let people lead you estray by telling you that you should use a heat grease;;; If the bearing gets even warm , It is toast; In boat bearings I allways use a water Resistant grease.. Altho when water gets to the bearing . they are also toast/shot/junk, Life is good To clairafy the warm statement; Bearings do sometimes get warm. on wheels. It's from the heat of the tire that is transfered to the hub..