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:
Single-row, pre-lubricated, normal accuracy.
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.
With small friction and high-limit speed, Ball Bearings are cost-effective and require little maintenance.
Specification:
Model: 623
Shielded Type: Open-Type
Inner Race/Outer Race Material: Zirconia (ZrO2)
Ball Material: Zirconia (ZrO2)
Cage Material: Zirconia (ZrO2)
Inner Diameter (d): 3mm
Outer Diameter (D): 10mm
Thickness (B): 4mm
Accuracy Class: P6
Noise Level: Z1
Number of Pack: 1Pcs