6x13x6 Bearing Shielded MiniatureBall Bearings 6 mmx 13 mm x 6 mm One Bearing One Ball Bearing the inner diameter is 6, outer diameter is 13 and the width is 6, this is a popular size that could be used in many applications, Bearings are made of Chrome Steel, bearing has 2 metal shields to protect the bearing from dust or any possible contamination, also bearings are pre lubricated with grease. Dimensions: 6*13*6 mm Metric ID (inner diameter) Bore=6mm OD (outer diameter)=13mm Width