Hbaebdoo 6004 - Double Waterproof Bearing, 20mm x 42mm x 12mm
Choose for a sealed bearing, rubber seals contact one of the two sides ball bearings.
If your application requires a 6004 ball with just one seal, you can get ball bearings and one of the seals on.
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Can be used for electric motors when widely used in machinery, automobiles, industrial electrical appliances and mechanical equipment and field types.