OverviewPrecision high RPM front engine bearing. Single shield bearing as the top engine manufacturers supply. The single shield allows the fuel to cool and lubricate the bearing. The bearing is lightly greased. Fits the RB Concepts WS7, WS7II, most Novarossi competition engines including the Plus 21-4 and Toro Nero and the O.S. MAX .21 RG, VZ-B and VZ-B V-Spec. This bearing will also fit any other .21 to .28 competition engines that use a 7mm x 19mm x 6mm front bearing. More RPM capability than the steel counterparts. Ceramic balls reduce rotating mass and friction. Rubber shield faces out toward the clutch
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