Codex 6004ZZC3 Extreme Electric Motor Quality Metal Shielded Deep Groove Ball Bearing 20x42x12mm

Extreme Electric Motor Quality Metal Shielded Deep Groove Ball Bearings: One of the most commonly used bearings, these types are manufactured with metal shields inserted into the outer raceway, these fit in closely to the inner race providing protection against light mechanical damage, some protection against the ingress of moisture, dust and other foreign matter and serve to retain the pre-filled grease in the bearing. For use in electrical motors, tools and household appliances.
Shields can be removed for applications that only require 1 shield
Benefits: Provides light mechanical protection, limits moisture and dirt ingress, low vibrations and noisiness.