1. Product Overview 6205-2NSE is NACHI standard single row deep groove ball bearing. 2NSE : NACHI designation, double-sided contact type NBR rubber seal, equivalent to universal 2RS specification It supports radial load plus minor bidirectional axial load. Contact lip seals effectively block dust, water splash and retain internal factory pre-filled grease. Suitable for medium-speed, dusty & humid working environments, maintenance-free for long-cycle continuous operation.