Uxcell 20Pcs Deep Groove Ball Bearing 684ZZ Double Shield 4 X 9 X 4Mm Carbon Steel

NOTE:Please refer to the picture and select right type of bearings before your order (Sealed or Shield on BOTH or SINGLE side of the bearing). Suffix on the bearing just for differentiating between Sealed and Shield type of bearing. It would not affect the use of our product. 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. Selection Guide:Shields (Designation Suffix Z/ZZ) - High speed. Protect from dirt and debris.Sealed (Designation SuffixRS/2RS) - Made of sheet steel reinforced nitrile butadiene rubber (oil- and liquid-resistant). Lower limit speed than Shield Bearings. Specification:Model: 684ZZShield Type: Double ShieldMaterial: Carbon SteelCage Material: Stamping SteelInner Diameter (d): 4mmOuter Diameter (D): 9mmThickness (B): 4mmAccuracy Class: P0 (ABEC-1)Number of Pack: 20 PcsWeight: 20g