... .2.EM pressed steel cage with rollers centered.3.EP-nylon cage with rollers centered.1. Typesof structure: NU,N,NJ ... ,NU...V,NNU,NNCF,NNCL, NNCS,FC,FCD,FCDP...2. Material: Gcr153. Retainer: J, K, M, MA, MB, ML, MP, MR4 ... combustion engines, gas turbines, machine tool spindles, deceleration devices, and material handling machinery and various types of industrial machinery.7. Packing: individual ...