This deep groove ball bearing carries balls in a single row, guided by a pressed steel sheet metal cage (JN), with a bore diameter of 140.0 mm, outside diameter of 210.0 mm, and width of 33.0 mm. Net mass is 3.6 kg. Limiting speed is rated at 4250.0 1/min, with a reference speed of 4050.0 1/min. Radial internal clearance corresponds to C5 (Group 5), providing increased internal play compared to standard clearance classes. The increased C5 clearance allows this bearing to compensate for thermal expansion and shaft fit conditions that would otherwise reduce operating clearance to near zero, making it suitable for applications running at elevated temperatures or with interference fits on both rings. The steel sheet metal cage keeps mass low relative to bearing size and supports operation up to the stated limiting speed. Being open type without integrated sealing, relubrication and contamination protection must be provided externally. Dimensionally and constructionally equivalent references: SKF 6028/C5, NSK 6028C5, NTN 6028C5.