10-Pack 61901-2RS 12x24x6mm Sealed Bearing10 Ball Bearings 6901 2RS 12 x 24 x 6 mm 10 Ball Bearings 6901 2RS, measures an inner diameter of 12, outer diameter is 24 and the width is 6, a standard bearing size commonly used in a variety of industrial and commercial applications, Made from high strength chrome steel for durability and performance, each bearing has Double Shielded to protect the bearing from dust or any possible contamination. Bearings are packed 10 bearings in one plastic tube.