1. Good Smooth 2. High precision 3. RoHS compliant 4. Lowest price ... aerospace industry,Medical Equipment,Machine Tools,Radar Equipment,Textile Machinery,Material Handling,Satellite Systems,Antenna Equipment, ... These bearings are offered in ABEC 1 through ABEC7 precision grades, pre-loaded, corrosion protected, grease-lubricated, ... in this list,please contact us. High precision large thin ball bearings