20x27x4 Ceramic Rubber Seal
- 20mm Inside diameter
- 27mm Outside diameter
- 4mm wide
- 6704-2rs 6704 20x27
- Abec 5
- Light oil
- Ceramic Silicon Nitride Si3N4 balls
- Chrome steel races and retainers
- Rubber seals
Ceramic Hybrid
Ceramic Hybrids last up to 10xs longer than Chrome Steel bearings. These are used in applications where high speed, load and temperature are a factor. Ceramic balls are harder and rounder than stainless & chrome steel, so therefore they offer less rolling resistance.