Our ceramic bearings are made from Silicon Nitride. Silicon Nitride ceramic bearings are the smoothest bearings available for your helicopter today, with next to no wear plus Silicon Nitride ceramic bearings will decrease friction which means less wear caused by vibration on other parts of your helicopter, less heat buildup and improve flight times and ultimately more power.

Bearings included as shown in image; BER0001 : 3x8x3 Silicon Nitride Ball (2pc)
BER0002 : 6x12x4 Silicon Nitride Ball (4pc)
BER0003 : 3x6x2.5 Silicone Nitride Ball (8pc) BER0004 : 4x7x2.5 Silicone Nitride Ball (2pc) JY500V2-P1S : Flybar Seesaw Hub Copper Case (1pc)