This deep groove ball bearing carries radial and moderate axial loads in a single row of balls running between a solid inner and outer ring. Bore diameter is 85.0 mm, outside diameter 180.0 mm, width 41.0 mm, net mass 4.36 kg. Both sides are fitted with metal shields (Z), and the ball complement runs in a steel sheet metal cage (JN). Limiting speed is rated at 4300 1/min, reference speed at 5300 1/min. Internal clearance corresponds to C3 (Group 3), giving extra internal play to compensate for tighter fits or thermal expansion during operation. The shields protect the raceway from coarse contaminants while allowing grease retained inside the bearing to remain in place; relubrication is limited by the shield design. Equivalent designations for this size and construction are SKF 6317-2Z/C3, NSK 6317ZZC3, and NTN 6317ZZC3.