Product Description 6307-2RS Sealed Ball Bearing 35mm x 80mm x 21mm 6307-2RS Sealed Ball Bearing, bearing is made from Chrome Steel, each bearing has 2 Rubber seals to protect the bearing from dust or any possible contamination, this is self lubricated bearing (bearing is already greased). * Item: 6307-2RS Ball Bearing * Type: Deep Groove Ball Bearing * Material: Chrome Steel * Closures: 2 Rubber Seals * Size: 35mm x 80mm x 21mm * Inner Diameter: 35mm * Outer Diameter: 80mm * Width: 21mm * Quantity: One Bearing * Dynamic load rating Cr: 33,500 N * Static load rating Cor: 19,200 N * Limiting Speed: * Grease Lubrication: 6,000 RPM