... for high speed 3.low friction, Self Ball Bearings 1218:Fetures:Self-aligning ball bearings can be made of plastic, ceramic, stainless steal and bearing steal.Self-aligning ball ... Applications:Self-aligning ball bearings are suitable for under ... heavy load and the impact load, widely used in metallurgical mine oil papermaking mill cement wrung sugar industry, etc. Self Aligning Ball Bearing ...