This single row deep groove ball bearing carries loads radially and to a moderate degree axially in both directions, with a bore of 180.0 mm, outside diameter of 320.0 mm and width of 52.0 mm. Net mass is 18.744 kg. The solid brass cage (M) guides the balls with low friction at higher rotational speeds, supporting a limiting speed of 3650.0 1/min and a reference speed of 2750.0 1/min. Internal clearance is C3 (Group 3), providing extra internal play to compensate for tighter fits and thermal expansion during operation at elevated speed. The design has no seals or shields (bore type Z), so lubrication and external protection must be supplied by the housing. The combination of C3 clearance and a solid brass cage makes this bearing suited to applications where shaft and housing fits reduce running clearance and where stable cage guidance is required at the given speed range.