NSK-RHP KLNJ1/2-2ZRY Single Row Deep Groove Ball Bearing- Both Sides Shielded 12.7mm I.D, 28.57mm O.D

Shielded bearings are fitted with two metal dust shields to prevent ingress of dirt and foreign matter.

Primarily intended for applications where the bearing inner ring rotates
If the outer ring rotates there is a danger that grease may be lost from the bearing at high speeds