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;

BER0008 : 2x5x2.5 Silicon Nitride Ball (10pc)
BER0004 : 4x7x2.5 Silicon Nitride Ball (2pc)
BER0009 : 4x8x3 Silicone Nitride Ball (2pc)