6700-2RS Sealed Ball Bearings 10mm x 15mm x 4mm Lot of 10 Bearings 10 Sealed 6700-2RS Ball Bearings, 6700-2RS is a popular size that could be used in many RC wheel and motor applications that uses this size 10mm x 15mm x 4mm, each 6700-2RS bearing has 2 Seals to protect the bearing from dust or any possible contamination, 6700-2RS bearings are pre-lubricated with grease, 6700-2RS Bearings are packed 10 bearings in one plastic tube.