6406-2RS Sealed Ball Bearing, the inner diameter is 30mm, the outer diameter is 90mm and the width is 23mm, 6406-2RS is a popular size that could be used in many applications, 6406-2RS Bearing is made of 30x90x23 Bearing Chrome Steel,bearing has 2 Rubber Seals to protect the bearing from dust or any possible contamination,6406-2RS bearing is pre-lubricated with grease. Item: 6406-2RS Ball Bearing Type: Deep Groove Ball Bearing Closures: 2 Rubber Seals NSK 6202z Bearing Lubrication: Self Lubricated (Grease) Dimensions: 30mm x 90mm x 23mm/Metric ID (inner diameter)/Bore: 30mm OD (outer diameter): 90mm Width/Height/thickness: 23mm Size: 30 x 90 x 23 mm Quantity: One Bearing Dynamic load rating Cr: 43,600 N Static load rating Cor: 23,600 N Limiting Speed:Grease Lubrication: 6,800 RPM