6302ZZ (I.D.=15mm, O.D.=42mm, Thickness=13mm); 6302ZZ bearing are shielded on BOTH SIDES to keep lubricant in; Chromium Steel long-life bearings, smooth and low noise.
The HM5 Bluetooth barcode scanner is the way to go for mobile scanning. Tiny but powerful, the HM5 features simple pairing to any smart phone, tablet, or computer.