6013 Nachi Bearing, Made in Japan, the 6013 inner diameter is 65mm, the 6013 outer diameter is 100mm and the 6013 width is 18mm. Item: 6013 Nachi Ball Bearing Type: Nachi Deep groove Ball Bearing Radial Clearance: C3 Dimensions: 65mm x 100mm x 18mm/Metric ID (inner diameter)/Bore: 65mm OD (outer diameter): 100mm Width/Height/thickness: 18mm Size: 65 x 100 x 18 mm Quantity: One Bearing Dynamic load rating Cr: 30,500 N Static load rating Cor: 30,500 N Limiting Speed: Grease Lubrication: 6,700 RPM Oil Lubrication: 8,000 RPM Made in Japan