【Performance introduction】The sealing material is made of metal, which can effectively prevent the wind, sand, foreign matter and debris from the outside of the bearing from intruding into the bearing and causing internal damage to the bearing and damaging the bearing. 【Satisfaction Guarantee】We are dedicated to delivering professional and heartfelt service to enhance your shopping experience. HiPicco 6806-2RS Deep Groove Ball Bearings, ID 30mm x OD 42mm x Width 【Material】Made of high-quality bearing steel,which are sturdy and durable,low noise and high speed,can be used for a long time. Ball Bearings 686ZZ Deep Groove 6x13x5mm Double Shielded Chrome Steel P6 10pcs Pre Lubricated Bearings Deep Groove Ball Bearings by Decent Machinery ensure smooth, quiet operation and long life. Get in bulk at competitive prices with fast, reliable delivery 【Wide range of applications】for Machine Tool Paper Machinery Mine/Construction Machinery Wind Turbines Electric Motor Injection Molding Machine Steel Equipment etc. Double Shielded Ball Bearing, 5200-ZZ - MDS