1. Product Overview 6922(equivalent model 61922)is metric thin-wall single row deep groove ball bearing.Common variants: 6922:Open type 6922ZZ:Double-sided non-contact metal dust shields 6922-2RS:Double-sided contact rubber seals It supports radial load plus minor bidirectional axial load. Slim cross-section design effectively saves radial installation space. Open version allows continuous re-lubrication; sealed versions retain factory pre-filled grease for long maintenance