6207 C3 Nachi Bearing, Made in Japan, the 6207 inner diameter is 35mm, the 6207 outer diameter is 72mm and the 6207 width is 17mm. Item: 6207 C3 Nachi Ball Bearing Type: Nachi Deep groove Ball Bearing Radial Clearance: C3 Dimensions: 35mm x 72mm x 17mm/Metric ID (inner diameter)/Bore: 35mm OD (outer diameter): 72mm Width/Height/thickness: 17mm Size: 35 x 72 x 17 mm Quantity: One Bearing Dynamic load rating Cr: 25,700 N Static load rating Cor: 15,300 N Limiting Speed: Grease Lubrication: 9,800 RPM Oil Lubrication: 11,000 RPM Made in Japan