1621DCNR Imperial Rubber Sealed Deep Groove Ball Bearing with Snap Ring 1/2x1-3/8x7/16 inch

Rubber Sealed Deep Groove Ball Bearings with Snap Ring: A popular choice where the housings is part of a machine frame, these bearing types are manufactured with rubber seals inserted into the outer raceway and in contact with the inner race providing protection against the ingress of moisture, dust and other foreign matter and serve to retain the pre-filled grease in the bearing. The snap ring is made from a spring steel material and fits into an annular groove around the outside of the bearing which is offset to one side.
Benefits: Prevents moisture and dirt getting into the bearing, lubricated for life, snap ring location in housings, open and metal shielded options available