【ZrO2 and PTFE】This ceramic bearing is made of high-grade ceramic ZrO2 and PTFE material, high precision and high speed. 【 oxide races】This deep ball bearing adopted oxide races design, to high temperatures and . 【smooth】Small frictional resistance, low power consumption, high mechanical efficiency, more efficient than metal bearings. 【full ceramic】The is a full ceramic ball bearing with diamagnetic electrically insulating, has better performance than metal ball ceramic bearings. 【wide applications】Standardization size, can be used for machinery manufacturing, equipment installation and maintenance.