They have been plastic sealed ball bearings, supplying smooth rotation, great precision of accessory and simplified maintenance. • 730 Sealed Ball Bearings x2 • Applications have actually M-chassis gearbox area. • utilizing ball bearings rather than synthetic and metal bearings provides better rotation and better elements setup. • These ball bearings use blue synthetic seals in the place of steel people – this permits one to begin the bearings to totally neat and concentrate for them. Blue synthetic seals furthermore significantly help in preventing debris going into the competition roller. • Low-viscosity oil is used to lubricate the interior workings. • occasionally perform upkeep like including oil; after crashes, checking bearing movement is preferred.