bearings 1. This bearing has the following types: Nseries, NNseries, 2. ISO 9001:2000 3. This bearing is made of Gcr15-China Cylindrical Roller ... Bearing1.Special features:1. This bearing has the following types: Nseries, NNseries, NUseries,NUPseries,NCFseries,etc.2 ... ,M,MA,MB,ML,MP,MR retainer.5. The clearance of this bearing is CN,C2,C3,C4 and C5.6. Technology ...