![20x27x4 Ceramic Rubber](http://jimsbearings.com/cdn/shop/products/157264082_518776335757160_3811157513454660449_n_d8c04c02-48b1-40b8-8ed6-c24ace8495a9_{width}x.jpg?v=1614888324)
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.