NAST30ZZ Track Needle Roller Shielded Bearing 30x62x25mmNAST30ZZ Track Needle Roller Bearing Shielded 30mm ID Shielded Roller, Built for Guided Motion The NAST30ZZ is a track needle roller bearing designed for steady movement under load. With shields on both sides and a compact 25mm width, its a solid fit for cam drives, linear motion setups, and automation tracks that need high radial strength and clean, contained rolling action. Size: 30mm ID x 62mm OD x 25mm Width Shielded on both sides to block debris