High Stability 6308/C3 6308-2Z/C3 6308-2RS1 Deep Groove Ball Bearings for Machine 6311-2Z/C3 is a Single-Row Deep Groove Ball Bearing with double-sided metal shields (2Z), C3 radial internal clearance, and pre-lubried with grease. The C3 clearance provides extra internal space to accommodate thermal expansion during operation, ensuring stable rotation under varying speeds. It efficiently handles moderate to heavy radial loads and light bidirectional axial loads with low