R6ZZ Racing Go Kart Spindle Bearings 3/8" x 7/8" x 9/32" inch Lot of 10 Bearings R6ZZ Racing Go Kart Spindle Bearings, Bearings are made of Chrome Steel, each bearing has 2 metal shields to protect the bearing from dust or any possible contamination, also bearings are pre-lubricated with grease.