This deep groove ball bearing carries radial and moderate axial loads on a 15.0 mm bore, with an outside diameter of 42.0 mm and a width of 13.0 mm. It belongs to Generation C construction and is fitted with metal shields on both sides, giving the 2Z designation, combined with a steel sheet metal cage (JN). Net mass is 0.101 kg, limiting speed reaches 23500 1/min, and reference speed is 19200 1/min. Radial internal clearance is C3, wider than standard, which compensates for tighter fits and thermal expansion during operation. The steel sheet metal cage keeps the design light and suited to the stated speed range, while the shields on both sides protect the raceway from dust without contact seal drag, so relubrication needs stay minimal within the sealed cavity. This configuration suits applications requiring stable running clearance under a C3 fit while retaining the low-friction character typical of a shielded, non-contact sealing arrangement.