... one direction.It's generally made of dteel stamping or brass cage and some of them are using cage of formed polyamide.2.Double ... 3. Retainer: J, K, M, MA, MB, ML, MP, MR 4. Clearance: CN, C2, C3, C4, C5 5. Precision level:ABEC ... combustion engines, gas turbines, machine tool spindles, deceleration devices, and material handling machinery and various types of industrial machinery. 7. Packing: individual ...