MR106-ZZ Bearing: Both Sides Shielded and pre-Lubricated with Grease, this bearing can effectively save grease,extending the life of machine. Low frictional and irregular torque highly efficient transmission and smooth rotating performance. Bearing Material: Made of steel manufacturing, can deliver high performance and high load capacity. The high accuracy of the bearings enables high-speed performance. Widely used in Hand Piece, Hobby, RC Helicopters, RC Planes, RC Trucks, RC , Beam Ball Bearing etc : MR106-ZZ Lubrication: Lubricated (Grease) Seal Type: Double Sealed Type: Bearing or or Deep Groove or Single Row or Double Seal size:6x10x3mm Material:Steel colour:Silver Package Contents: 20 x MR106-ZZ Bearing Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is 1-3cm.