This deep groove ball bearing carries radial and moderate axial loads on a single row of balls, with bore diameter 55.0 mm, outside diameter 120.0 mm, and width 29.0 mm. It belongs to Generation C design and is fitted with shields on both sides, giving it the 2Z designation, along with a steel sheet metal cage (JN). Net mass is 1.348 kg, limiting speed reaches 7200 1/min, and reference speed is 7800 1/min. Radial internal clearance falls in the CN (Group N) range, suitable for standard fits without special preload requirements. The shields protect the raceway and balls from dust and coarse contaminants while retaining the initial grease fill, making this bearing suited for applications where relubrication access is limited. The steel cage design supports stable ball guidance at the stated speed range, and the C-series construction allows for a compact cross-section relative to load capacity within these dimensions.