Deep Groove Hybrid Radial Ball Bearings featuring Si3N4 Silicon Nitride Ceramic balls from LM76 complement their broad range of linear bearings that are FDA/USDA/3A Dairy compliant. These Deep Groove Stainless/Ceramic Hybrid Si3N4 Silicon Nitride Radial Ball Bearings are ideal for the extreme environments experienced in the food, drug, and dairy industries. Capable of high speeds,