They are plastic sealed ball bearings, which offer smooth rotation, great precision of accessory as well as simplified maintenance.
• 1150 Sealed Ball Bearings x2
• Applications include numerous classic Tamiya R/C models.
• Using ball bearings in place of synthetic and metal bearings gives more effective rotation and better components setup.
• These ball bearings use blue plastic seals in place of metal people – this allows one to open the bearings to completely clean and work with them. Blue rubber seals also vastly help in preventing debris entering the battle roller.
• Low-viscosity oil is employed to lubricate the inner workings.
• occasionally perform upkeep such as for instance adding oil; after crashes, checking bearing movement is preferred.