5205-2NSE Nachi Double Row Angular Ball Bearing, Double Sealed, Made in Japan, inner diameter is 25mm, outer diameter is 52mm and width is 20.6mm. Item: 5205-2NSE Nachi Ball Bearing Type: Nachi Double Row Angular Ball Bearing Closures: Double Sealed Dimensions: 25mm x 52mm x 20.6mm/Metric ID (inner diameter)/Bore: 25mm OD (outer diameter): 52mm Width/Height/thickness: 20.6mm Size: 25 x 52 x 20.6 mm Quantity: One Bearing Dynamic load rating Cr: 21,800 N Static load rating Cor: 15,100 N Limiting Speed: Grease Lubrication: 9,500 RPM Made in Japan