20PCS 3x8x4mm Deep Groove Ball Bearings Double Shielded Miniature
Deep Groove Ball BearingGeneral Information：[1]Deep Groove Ball Bearings are one of the most widely used rolling bearings. They are used to accommodate radial and axial loads in both directions.[2]Miniature Single Row Deep Groove Ball Bearing.Bearing made from Chrome Steel(Gcr15) for durability and resistance.[3]Both sided steel dust shields to prevent ingress of dirt and foreign matter, high temperature resistance.[4]Features: simple configuration,high speed,less coefficient of friction,less vibration and noise.[5]Inner Dia.*Outer Dia.*Thickness=3mmx8mmx4mm.