This deep groove ball bearing carries radial and moderate axial loads through a single row of balls running in a steel sheet metal cage (JN). Bore diameter is 90.0 mm, outside diameter 140.0 mm, width 24.0 mm, with a net mass of 1.23 kg. Both sides are protected by metal shields (2Z), and radial internal clearance falls within the CN (Group N) range. Limiting speed and reference speed are both 5600 1/min. The metal shields keep the bearing suitable for applications where grease lubrication is retained internally and contamination ingress must be limited, without providing a full rubbing seal contact. Standard CN clearance and a steel cage support balanced running behavior at the stated speed limits. Dimensionally and constructionally, this bearing corresponds to SKF 6018-2Z, NSK 6018ZZ, and NTN 6018ZZ.