Metal Shielded Deep Groove Ball Bearings: One of the most commonly used bearings, these types are manufactured with a metal shield inserted into the outer raceway,
They fit snugly against the inner ring, preventing minor mechanical damage and also preventing the ingress of moisture, dust and other foreign objects
and is used to retain pre-filled grease in the bearing.

Benefits: Provides light mechanical protection, limits moisture and dirt ingress, lubricated for life.

Size: d x D x B
Material: bearing steel