... ! Features: 1, Material: ZrO2, Si3N4, SiC and Al2O3, etc.1).High speed bearings:12000rpm--75000rpm2).High temperature-resistant bearing:100 ... including metric and inch deep groove ball bearing, self-aligning bearing, angular contact bearing, plain bearing, and spherical bearing. Open type, seal rings, shields ... .0007608LL82214.000760992415.0007609LL92415.0007 Ceramic deep groove ball bearing ZrO2 6019