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 power 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 excellent high-speed performance. Widely used in Hand Piece, Hobby, RC Helicopters, RC Planes, RC Trucks, RC Cars, Beam Ball Bearing etc Model: MR106-ZZ Lubrication: Lubricated (Grease) Seal Type: Double Sealed Type: Bearing / Radial / Deep Groove / Single Row / Double Seal size:6x10x3mm Material:Steel colour:Silver Package Contents: 20 * MR106-ZZ Bearing Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.