bearings for electric motors can be used in automobile,precision machinery,electric tools,power tools,sports apparatus,machines Item: All ... open,Z,ZZ,RS,2RS,NR available2.material:chrome steel3.quality certification:ISO9001:2000 system4.vibration and noise level:Z1V1, ... service:prompt delivery,OEM available7.Advantage:competitive prices with excellent quality High Quality bearings for electric motors