10-Pack 61800ZZ 10x19x5mm Double Shielded BearingBall Bearings 10x19x5 Lot of 10 Bearings 10 bearings Ball Bearings for many applications, this is a popular size that could be used in many RC Vigor helicopters, RC Cars and Trucks, or any application that uses this size 10mm x 19mm x 5mm, these bearings are made from high strength Chrome Steel and can rotate up to 37000 rpm, each Comes with double metal shields (ZZ) to keep out dust and dirt, additionally, these bearings come pre lubricated with