Product Details
The BL deep groove ball bearings (inch) 1621-ZZ are shielded, light-duty components featuring a 0.5" bore and a 1.375" outer diameter. These precision ground bearings are designed to be domestically interchangeable with traditional (semi-ground) domestic inch series bearings. With an ABEC 1 tolerance, they include grooved raceways on both the inner and outer rings, allowing them to accommodate moderate axial loads in both directions alongside radial loads. Each bearing is equipped with steel cages to separate the balls. Common interchanges for these bearings include 22208-77 General, 1621DS Nice, and BR7721 Shatz.
