688Z Ball Bearing 8mm x 16mm x 5mm 3D Printer Accessories Double Shielded Deep Groove Bearings for V Slot NEMA 23 Motor L inear Guide Silver Metal Pack of 10: Amazon.com: Industrial
688Z Ball Bearing 8mm x 16mm x 5mm 3D Printer Accessories Double Shielded Deep Groove Bearings for V Slot NEMA 23 Motor L inear Guide Silver Metal Pack of 10: Amazon.com: Industrial
uxcell 688ZZ Ball Bearing 8mm x 16mm x 5mm Double Shielded 688-2Z 2080088 Deep Groove Bearings, Carbon Steel (Pack of 20): Amazon.com: Industrial & Scientific