Slot Car Axle Open Stainless Flanged Bearings 1/8" x 1/4" x 7/64" inch Lot of 10 Bearings 10 Flanged Slot Car Axle Bearing Bearings, this is a popular size that could be used in many application that uses this size 1/8" x 1/4" x 7/64". Bearings are made of Stainless Steel.