Certifications ISO,SASO,CE,SGS CertificateFAQ Features:1.High speed bearings:12000rpm--75000rpm2.High temperature-resistant bearing:100??C--800??C.It can been applied in kiln,plastic,steel and other equipments that can bear high temperature3.Corrosion-resistant bearings4.Electric-insulated bearings5.Vacuum bearings:self-lubricating without oil.