TTeam Associated RC10B6.2 / B6.3 Bearing Kits, Multiple options are available on this listing, 
This car has the following Bearings:
3x7x3mm Bearings X 8 (Steering)
5x8x2.5mm Bearings X 2 (Diff)
5x10x4mm Bearings X 8 or 10 (4 in Front Hubs, 4 or 6 depending on standard 3 gear transmission or 4 gear transmission)
5x12x4mm Bearings X 2 (Rear Hubs)
10x15x4mm Bearings X 4 (2 Gearbox, 2 Rear Hubs)
 
Plaig Bearings are a stronger, more reliable bearing with greater heat resistance and superior life to the standard factory bearings.