STO10ZZ-DZ Track Needle Roller Shielded Bearing 10x30x16mmSTO10ZZ DZ Track Roller Needle Bearing Shielded 10mm x 30mm x 16mm Inner Ring Included, VXB Brand The STO10ZZ DZ is a shielded track roller bearing featuring needle rollers and an integrated inner ring. Designed for cam followers, linear tracks, and guide systems, it handles both radial loads and axial alignment with low friction operation and long service life. Size: 10mm ID x 30mm OD x 16mm width Type: Needle roller track bearing Closures: Double