6804ZZ Bearing 20x32x7 Shielded 20mm Bore6804ZZ Shielded Ball Bearings 20mm x 32mm x 7mm Quality Ball Bearings 6804ZZ, the inner diameter is 20mm, outer diameter is 32mm and the width is 7mm, Bearings are made of Chrome Steel, also bearing is pre lubricated with grease, each bearing has 2 metal shields to protect the bearing from dust or any possible contamination. Item: 6804ZZ Ball Bearings Dimensions: 20mm x 32mm x 7mm Metric Bearing Inner Diameter: 20mm Bearing Outer Diameter: 32mm