1. Product Overview 6315 ZZ/C3 is single row deep groove ball bearing. ZZ represents double-sided stamped metal dust shields; C3 means larger internal clearance than standard group, suitable for operating conditions with temperature rise and thermal expansion. This bearing can withstand radial load and minor bidirectional axial load simultaneously. Double metal shields block dry dust and impurities. Factory pre-lubricated for initial operation. Widely used in large industrial