... or ZrO2, as a standard constructure,the cage made by PTFE, generally we also could make the cage with GFRPA66-25 ... , Material: ZrO2, Si3N4, SiC and Al2O3, etc.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 ...