This deep groove ball bearing carries radial and moderate axial loads on a 90.0 mm bore, 160.0 mm outside diameter and 30.0 mm width, with a net mass of 2.136 kg. It is a single row design with steel sheets on both sides, fitted with a steel sheet metal cage (JN). Radial internal clearance is C3 (Group 3), wider than standard, which compensates for thermal expansion during operation. Limiting speed is rated at 5400.0 1/min, with a reference speed of 5100.0 1/min. The steel shields on both sides restrict the ingress of dust and coarse contaminants while keeping grease inside the bearing, so this variant is intended for grease lubrication rather than oil. The C3 clearance suits applications where the shaft or housing experiences moderate temperature rise, preventing excessive preload during operation. Dimensionally and constructionally equivalent designations are SKF 6218-2Z/C3, NSK 6218ZZC3 and NTN 6218ZZC3.