XiKe Pack of 4 6801 2RS ball bearings, 12 x 21 5 mm, chrome steel, pre lubricated, rubber double seal, 6801RS deep groove bearing with covers.

✔ Dimensions: 6801-2RS bore 12mm, outer diameter 21mm, width 5mm. ✔ Features: Low friction and high speed capability, can absorb radial and axial loads in both directions. ✔ Material: chrome steel and metal gaskets for long life and durability. ✔ SEAL: Double sealed bearings require less maintenance, which reduces the frequency and cost of replacement. ✔ Application: widely used in DIY, 3D printers, industry, agriculture, mechanical engineering, garden machinery, engines and generators, etc.