[Ceramic Balls]

Bearings
1) Upgraded stainless steel ceramic Si3N4 hybrid bearing SC6001-2RS (12 x 28 x 8 mm)
Stainless steel SUS440 material inner and outer ring
Nylon PA66 cage
G5 grade silicon nitride (Si3N4) ceramic balls
Internally greased with Krupp grease
Double-sided sealing ring construction
2) Standard material 6001-2RS (12x28x8 mm)
Inner and outer rings and balls made of bearing steel
Steel cage
Internal grease with synergistic PS2 low noise grease
Special seal construction on the inner ring for excellent dust and dirt resistance
Smooth rotating feel without noise