1620-2RS Deep Groove Ball Bearings 7/16 X 1-3/8 X 7/16Inch Double Sealed Chrome
1620 2RS bearings are sealed on BOTH SIDES to keep lubricant in. Deep Groove Ball Bearings. 3D Printer, many household appliances or tools which need ball bearings. The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads.