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F623ZZ Bearing 3x10x4mm Flanged ABEC-5 High Precision Miniature F623-ZZ Deep Groove Ball Bearings F623 ZZ for 3D Printer (Pick of 10Pcs): Amazon.com: Industrial & Scientific
X50 F623ZZ Shielded Flanged Bearing 3mm x 10mm x 4mm RADIAL ROLLER BEARING USA | eBay
Deep Groove Flange Bearing | Flange Ball Bearing | 3d Printers Parts | F623zz Bearings - Bearings - Aliexpress
Item # F623ZZ, 0.1181 Inch (in) Bore Diameter (d) Flanged Shielded Metric Ball Bearing On SPB USA