1. Product Overview 6005-2Z/C3 is standard single row deep groove ball bearing. 2Z : Double-sided non-contact metal dust shields, block solid dust and retain internal grease C3 : Increased radial internal clearance, designed for high-speed operation and thermal expansion scenarios It can bear radial load and light bidirectional axial load simultaneously. Deep raceway structure guarantees smooth, low-noise rotation. Pre-greased shielded version reduces routine maintenance.