Ball Bearings 5x11x3.5 Lot of 10 Bearings High Quality 10 bearings Wheel Ball Bearings for many applications, this is a popular size that could be used in many RC Cars and Trucks, or any application that uses this size 5mm x 11mm x 3.5mm. Bearings are made of Chrome Steel and can rotate up to 53000 rpm, Bearings are packed 10 bearings in one plastic tube.