Description: Deep Groove Ball Bearings are one of the most widely used rolling bearings. They are used to accommodate radial and axial loads in both directions. Suitable for all kinds of industrial equipment, micro motor, small rotary motor, office equipment and so on. With small friction and high-limit speed, Uxcell's Deep Groove Ball Bearings are cost-effective and require little maintenance. Carbon Steel bearings are better in toughness than chrome steel bearings after quenching. These cost-effective bearings are widely used in areas with low requirements for Mohs hardness. Single-row, pre-lubricated, normal accuracy.  Specification: Model: 683ZZ Shield Type: Double Shield Material: Carbon Steel Cage Material: Stamping Steel Inner Diameter (d): 3mm Outer Diameter (D): 7mm Thickness (B): 3mm Accuracy Class: P0 (ABEC-1) Number of Pack: 10 Pcs Weight: 6g