This is a single row deep groove ball bearing with a steel sheet metal cage (JN), bore diameter 90.0 mm, outside diameter 140.0 mm, and width of only 16.0 mm, giving it a narrow cross-section within the 160 series. Net mass is 0.866 kg, limiting speed reaches 6800 1/min, and reference speed is 4400 1/min. Radial internal clearance is set to C3 (Group 3), wider than standard, and the bore type is Z. The C3 clearance compensates for thermal expansion during operation and interference fits on the shaft, allowing stable running under radial and light axial loads. The steel sheet metal cage keeps mass low and supports smooth ball guidance at the stated speed range. As the bearing has no seals or shields, external lubrication and protection must be provided by the housing design, and mounting should account for the narrow width when aligning with adjacent components.