This deep groove ball bearing carries radial and moderate axial loads in a single row of balls, with a bore diameter of 55.0 mm, outside diameter of 90.0 mm and width of 18.0 mm. The bearing has a solid laminated fabric cage (TB) and a net mass of 396.55 g. Limiting speed is rated at 10700.0 1/min, with a reference speed of 8300.0 1/min. Radial internal clearance is set to C3 (Group 3), which allows for greater thermal expansion during operation and compensates for tighter fits than a standard clearance would permit. The TB cage design supports stable ball guidance at the stated speed range while keeping frictional losses low. Bore type Z should be considered when selecting a matching shaft tolerance for proper fit.