1. Product Overview The 6900ZZ thin-wall miniature deep groove ball bearing adopts double-sided ZZ non-contact metal dust shields, standard dimension 10×22×6mm. It bears radial load and slight bidirectional axial load, features ultra-light thin-wall structure and low rotational friction. Double steel shields block fine dust and particle impurities, lock internal long-life lubricating grease, widely used in micro motors, small cooling fans, automation miniature shafts, optical