Ball Bearings 7x19x6 mm Stainless Steel Lot of 10 Bearings 10 bearings Stainless Steel Ball Bearings , this is a popular size that could be used in many application that uses this size 7mm x 19mm x 6mm. Bearings are made of Stainless Steel, each bearing are rubber sealed from both sides to protect the bearing from dust or any possible contamination, also bearings are pre-lubricated with grease.