Very high mechanical strength and rigidity
Very high toughness (also at low temperature)
Very high anti-deformation ability at high temperature
Very high dimentional stability
Very high resistance to roentgen ray and infrared ray
Very high hydrolysis resistance(18atm,280°C)
Relatively low notched impact strength
| Parts | Materials |
| Rings | PEEK |
| Balls | PEEK，ZrO2，Sl3N4，SIC |
| Cage | PTFE，PEEK，PA66，UPE，PFA |
