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.
Suitable for all kinds of industrial equipment, micro motor, small rotary motor, office equipment and so on.
With small friction and high-limit speed, 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 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: 6903-2RS
Sealed Type: Double Sealed
Material: Carbon Steel
Cage Material: Stamping Steel
Inner Diameter: 17mm
Outer Diameter: 30mm
Thickness (B): 7mm
Dynamic Load Rating (Cr): 4.6kN
Static Load Rating (Cor): 2.6kN
Accuracy Class: P0 (ABEC-1)
Number of Pack: 2 Pcs
Weight: 35g