1. Product Overview 6011-2Z/C3 is standard single row deep groove ball bearing. 2Z : Double-sided non-contact metal dust shields, preventing large dust particles and retaining internal grease. C3 : Increased radial internal clearance, designed for high-speed operation to compensate shaft thermal expansion. It supports radial load and light bidirectional axial load. Deep raceway design ensures low vibration and stable rotation. Pre-lubricated shielded structure reduces regular