UNI 4218-1963 Rolling bearings; radial bearings; steel bearings; single ring cylindrical roller bearings; outer ring sealed bearings. 23* size series, replacing UNI 625
1963UNI 4218-1963 Rolling bearings; radial bearings; steel bearings; single ring cylindrical roller bearings; outer ring sealed bearings. 23* size series, replacing UNI 625