Carries radial loads and moderate axial loads through a single row of balls running in deep grooves, giving the raceway constant conformity to the ball set across the working clearance range. The 6013 is built with a steel sheet metal cage (JN) and has bore code Z, with bore diameter 65.0 mm, outside diameter 100.0 mm and width 18.0 mm; mass is 0.418 kg. Radial internal clearance is CN (Group N), limiting speed is 9500 1/min and reference speed is 7100 1/min. The CN clearance and single-row deep groove design suit shafts running at speeds up to the stated limits without added preload, while the steel sheet metal cage keeps mass low and supports the rated speed range. No sealing or shielding is fitted, so lubrication and contamination protection must be provided externally. Dimensionally and constructionally interchangeable with SKF 6013, NSK 6013 and NTN 6013.