Unifizz Iron Cover Bearing Ball Bearings Deep Groove Ball Bearing 685ZZ 5x11x3mm Z1 Pre-Lubricated Bearings for Wheels Electric Motor Applications Bearing Steel, Silver 5 PCS

["[Size] -685ZZ(Inner Dia.= 5mm, Outer Dia.= 11mm, Thickness= 3mm).","[Material] - The main material of these ball bearings is high-quality Bearing Steel. Its steel structure makes it durable and resistant to deformation under heavy loads.","[Sealing Performance] - It is sealed on one side of the bearing to facilitate lubrication and maintenance, while preventing dust from entering. Ideal for vertical installation.","[High Speed and Low Noise] - Bearings have the advantages of low noise, fast heat dissipation, low friction, high speed and high temperature resistance.","[Widely Used] - Household appliances, garden machinery, micro motors, outdoor vehicles, electric toys and tools, industrial production, etc."]